<< Chapter < Page Chapter >> Page >

Section exercises

Verbal

If division of a polynomial by a binomial results in a remainder of zero, what can be conclude?

The binomial is a factor of the polynomial.

Got questions? Get instant answers now!

If a polynomial of degree n is divided by a binomial of degree 1, what is the degree of the quotient?

Got questions? Get instant answers now!

Algebraic

For the following exercises, use long division to divide. Specify the quotient and the remainder.

( x 2 + 5 x 1 ) ÷ ( x 1 )

x + 6 + 5 x - 1 , quotient: x + 6 , remainder: 5

Got questions? Get instant answers now!

( 2 x 2 9 x 5 ) ÷ ( x 5 )

Got questions? Get instant answers now!

( 3 x 2 + 23 x + 14 ) ÷ ( x + 7 )

3 x + 2 , quotient:  3 x + 2 , remainder: 0

Got questions? Get instant answers now!

( 4 x 2 10 x + 6 ) ÷ ( 4 x + 2 )

Got questions? Get instant answers now!

( 6 x 2 25 x 25 ) ÷ ( 6 x + 5 )

x 5 , quotient: x 5 , remainder: 0

Got questions? Get instant answers now!

( x 2 1 ) ÷ ( x + 1 )

Got questions? Get instant answers now!

( 2 x 2 3 x + 2 ) ÷ ( x + 2 )

2 x 7 + 16 x + 2 , quotient: 2 x 7 , remainder: 16

Got questions? Get instant answers now!

( x 3 126 ) ÷ ( x 5 )

Got questions? Get instant answers now!

( 3 x 2 5 x + 4 ) ÷ ( 3 x + 1 )

x 2 + 6 3 x + 1 , quotient: x 2 , remainder: 6

Got questions? Get instant answers now!

( x 3 3 x 2 + 5 x 6 ) ÷ ( x 2 )

Got questions? Get instant answers now!

( 2 x 3 + 3 x 2 4 x + 15 ) ÷ ( x + 3 )

2 x 2 3 x + 5 , quotient: 2 x 2 3 x + 5 , remainder: 0

Got questions? Get instant answers now!

For the following exercises, use synthetic division to find the quotient.

( 3 x 3 2 x 2 + x 4 ) ÷ ( x + 3 )

Got questions? Get instant answers now!

( 2 x 3 6 x 2 7 x + 6 ) ÷ ( x 4 )

2 x 2 + 2 x + 1 + 10 x 4

Got questions? Get instant answers now!

( 6 x 3 10 x 2 7 x 15 ) ÷ ( x + 1 )

Got questions? Get instant answers now!

( 4 x 3 12 x 2 5 x 1 ) ÷ ( 2 x + 1 )

2 x 2 7 x + 1 2 2 x + 1

Got questions? Get instant answers now!

( 9 x 3 9 x 2 + 18 x + 5 ) ÷ ( 3 x 1 )

Got questions? Get instant answers now!

( 3 x 3 2 x 2 + x 4 ) ÷ ( x + 3 )

3 x 2 11 x + 34 106 x + 3

Got questions? Get instant answers now!

( 6 x 3 + x 2 4 ) ÷ ( 2 x 3 )

Got questions? Get instant answers now!

( 2 x 3 + 7 x 2 13 x 3 ) ÷ ( 2 x 3 )

x 2 + 5 x + 1

Got questions? Get instant answers now!

( 3 x 3 5 x 2 + 2 x + 3 ) ÷ ( x + 2 )

Got questions? Get instant answers now!

( 4 x 3 5 x 2 + 13 ) ÷ ( x + 4 )

4 x 2 21 x + 84 323 x + 4

Got questions? Get instant answers now!

( x 3 3 x + 2 ) ÷ ( x + 2 )

Got questions? Get instant answers now!

( x 3 21 x 2 + 147 x 343 ) ÷ ( x 7 )

x 2 14 x + 49

Got questions? Get instant answers now!

( x 3 15 x 2 + 75 x 125 ) ÷ ( x 5 )

Got questions? Get instant answers now!

( 9 x 3 x + 2 ) ÷ ( 3 x 1 )

3 x 2 + x + 2 3 x 1

Got questions? Get instant answers now!

( 6 x 3 x 2 + 5 x + 2 ) ÷ ( 3 x + 1 )

Got questions? Get instant answers now!

( x 4 + x 3 3 x 2 2 x + 1 ) ÷ ( x + 1 )

x 3 3 x + 1

Got questions? Get instant answers now!

( x 4 3 x 2 + 1 ) ÷ ( x 1 )

Got questions? Get instant answers now!

( x 4 + 2 x 3 3 x 2 + 2 x + 6 ) ÷ ( x + 3 )

x 3 x 2 + 2

Got questions? Get instant answers now!

( x 4 10 x 3 + 37 x 2 60 x + 36 ) ÷ ( x 2 )

Got questions? Get instant answers now!

( x 4 8 x 3 + 24 x 2 32 x + 16 ) ÷ ( x 2 )

x 3 6 x 2 + 12 x 8

Got questions? Get instant answers now!

( x 4 + 5 x 3 3 x 2 13 x + 10 ) ÷ ( x + 5 )

Got questions? Get instant answers now!

( x 4 12 x 3 + 54 x 2 108 x + 81 ) ÷ ( x 3 )

x 3 9 x 2 + 27 x 27

Got questions? Get instant answers now!

( 4 x 4 2 x 3 4 x + 2 ) ÷ ( 2 x 1 )

Got questions? Get instant answers now!

( 4 x 4 + 2 x 3 4 x 2 + 2 x + 2 ) ÷ ( 2 x + 1 )

2 x 3 2 x + 2

Got questions? Get instant answers now!

For the following exercises, use synthetic division to determine whether the first expression is a factor of the second. If it is, indicate the factorization.

x 2 , 4 x 3 3 x 2 8 x + 4

Got questions? Get instant answers now!

x 2 , 3 x 4 6 x 3 5 x + 10

Yes ( x 2 ) ( 3 x 3 5 )

Got questions? Get instant answers now!

x + 3 , 4 x 3 + 5 x 2 + 8

Got questions? Get instant answers now!

x 2 , 4 x 4 15 x 2 4

Yes ( x 2 ) ( 4 x 3 + 8 x 2 + x + 2 )

Got questions? Get instant answers now!

x 1 2 , 2 x 4 x 3 + 2 x 1

Got questions? Get instant answers now!

x + 1 3 , 3 x 4 + x 3 3 x + 1

No

Got questions? Get instant answers now!

Graphical

For the following exercises, use the graph of the third-degree polynomial and one factor to write the factored form of the polynomial suggested by the graph. The leading coefficient is one.

Factor is x 2 x + 3

Graph of a polynomial that has a x-intercept at -1.
Got questions? Get instant answers now!

Factor is ( x 2 + 2 x + 4 )

Graph of a polynomial that has a x-intercept at 1.

( x 1 ) ( x 2 + 2 x + 4 )

Got questions? Get instant answers now!

Factor is x 2 + 2 x + 5

Graph of a polynomial that has a x-intercept at 2.
Got questions? Get instant answers now!

Factor is x 2 + x + 1

Graph of a polynomial that has a x-intercept at 5.

( x 5 ) ( x 2 + x + 1 )

Got questions? Get instant answers now!

For the following exercises, use synthetic division to find the quotient and remainder.

4 x 3 33 x 2

Quotient: 4 x 2 + 8 x + 16 , remainder: 1

Got questions? Get instant answers now!

3 x 3 + 2 x 5 x 1

Quotient: 3 x 2 + 3 x + 5 , remainder: 0

Got questions? Get instant answers now!

4 x 3 x 2 12 x + 4

Got questions? Get instant answers now!

x 4 22 x + 2

Quotient: x 3 2 x 2 + 4 x 8 , remainder: 6

Got questions? Get instant answers now!

Technology

For the following exercises, use a calculator with CAS to answer the questions.

Consider x k 1 x 1 with k = 1 ,   2 ,   3. What do you expect the result to be if k = 4 ?

Got questions? Get instant answers now!

Consider x k + 1 x + 1 for k = 1 ,   3 ,   5. What do you expect the result to be if k = 7 ?

x 6 x 5 + x 4 x 3 + x 2 x + 1

Got questions? Get instant answers now!

Consider x 4 k 4 x k for k = 1 ,   2 ,   3. What do you expect the result to be if k = 4 ?

Got questions? Get instant answers now!

Consider x k x + 1 with k = 1 ,   2 ,   3. What do you expect the result to be if k = 4 ?

x 3 x 2 + x 1 + 1 x + 1

Got questions? Get instant answers now!

Consider x k x 1 with k = 1 ,   2 ,   3. What do you expect the result to be if k = 4 ?

Got questions? Get instant answers now!

Extensions

For the following exercises, use synthetic division to determine the quotient involving a complex number.

x + 1 x i

1 + 1 + i x i

Got questions? Get instant answers now!

x + 1 x + i

1 + 1 i x + i

Got questions? Get instant answers now!

x 3 + 1 x i

x 2 i x 1 + 1 i x i

Got questions? Get instant answers now!

Real-world applications

For the following exercises, use the given length and area of a rectangle to express the width algebraically.

Length is x + 5 , area is 2 x 2 + 9 x 5.

Got questions? Get instant answers now!

Length is 2 x   +   5 , area is 4 x 3 + 10 x 2 + 6 x + 15

2 x 2 + 3

Got questions? Get instant answers now!

Length is 3 x 4 , area is 6 x 4 8 x 3 + 9 x 2 9 x 4

Got questions? Get instant answers now!

For the following exercises, use the given volume of a box and its length and width to express the height of the box algebraically.

Volume is 12 x 3 + 20 x 2 21 x 36 , length is 2 x + 3 , width is 3 x 4.

2 x + 3

Got questions? Get instant answers now!

Volume is 18 x 3 21 x 2 40 x + 48 , length is 3 x 4 , width is 3 x 4.

Got questions? Get instant answers now!

Volume is 10 x 3 + 27 x 2 + 2 x 24 , length is 5 x 4 , width is 2 x + 3.

x + 2

Got questions? Get instant answers now!

Volume is 10 x 3 + 30 x 2 8 x 24 , length is 2 , width is x + 3.

Got questions? Get instant answers now!

For the following exercises, use the given volume and radius of a cylinder to express the height of the cylinder algebraically.

Volume is π ( 25 x 3 65 x 2 29 x 3 ) , radius is 5 x + 1.

x 3

Got questions? Get instant answers now!

Volume is π ( 4 x 3 + 12 x 2 15 x 50 ) , radius is 2 x + 5.

Got questions? Get instant answers now!

Volume is π ( 3 x 4 + 24 x 3 + 46 x 2 16 x 32 ) , radius is x + 4.

3 x 2 2

Got questions? Get instant answers now!

Questions & Answers

differentiate between demand and supply giving examples
Lambiv Reply
differentiated between demand and supply using examples
Lambiv
what is labour ?
Lambiv
how will I do?
Venny Reply
how is the graph works?I don't fully understand
Rezat Reply
information
Eliyee
devaluation
Eliyee
t
WARKISA
hi guys good evening to all
Lambiv
multiple choice question
Aster Reply
appreciation
Eliyee
explain perfect market
Lindiwe Reply
In economics, a perfect market refers to a theoretical construct where all participants have perfect information, goods are homogenous, there are no barriers to entry or exit, and prices are determined solely by supply and demand. It's an idealized model used for analysis,
Ezea
What is ceteris paribus?
Shukri Reply
other things being equal
AI-Robot
When MP₁ becomes negative, TP start to decline. Extuples Suppose that the short-run production function of certain cut-flower firm is given by: Q=4KL-0.6K2 - 0.112 • Where is quantity of cut flower produced, I is labour input and K is fixed capital input (K-5). Determine the average product of lab
Kelo
Extuples Suppose that the short-run production function of certain cut-flower firm is given by: Q=4KL-0.6K2 - 0.112 • Where is quantity of cut flower produced, I is labour input and K is fixed capital input (K-5). Determine the average product of labour (APL) and marginal product of labour (MPL)
Kelo
yes,thank you
Shukri
Can I ask you other question?
Shukri
what is monopoly mean?
Habtamu Reply
What is different between quantity demand and demand?
Shukri Reply
Quantity demanded refers to the specific amount of a good or service that consumers are willing and able to purchase at a give price and within a specific time period. Demand, on the other hand, is a broader concept that encompasses the entire relationship between price and quantity demanded
Ezea
ok
Shukri
how do you save a country economic situation when it's falling apart
Lilia Reply
what is the difference between economic growth and development
Fiker Reply
Economic growth as an increase in the production and consumption of goods and services within an economy.but Economic development as a broader concept that encompasses not only economic growth but also social & human well being.
Shukri
production function means
Jabir
What do you think is more important to focus on when considering inequality ?
Abdisa Reply
any question about economics?
Awais Reply
sir...I just want to ask one question... Define the term contract curve? if you are free please help me to find this answer 🙏
Asui
it is a curve that we get after connecting the pareto optimal combinations of two consumers after their mutually beneficial trade offs
Awais
thank you so much 👍 sir
Asui
In economics, the contract curve refers to the set of points in an Edgeworth box diagram where both parties involved in a trade cannot be made better off without making one of them worse off. It represents the Pareto efficient allocations of goods between two individuals or entities, where neither p
Cornelius
In economics, the contract curve refers to the set of points in an Edgeworth box diagram where both parties involved in a trade cannot be made better off without making one of them worse off. It represents the Pareto efficient allocations of goods between two individuals or entities,
Cornelius
Suppose a consumer consuming two commodities X and Y has The following utility function u=X0.4 Y0.6. If the price of the X and Y are 2 and 3 respectively and income Constraint is birr 50. A,Calculate quantities of x and y which maximize utility. B,Calculate value of Lagrange multiplier. C,Calculate quantities of X and Y consumed with a given price. D,alculate optimum level of output .
Feyisa Reply
Answer
Feyisa
c
Jabir
the market for lemon has 10 potential consumers, each having an individual demand curve p=101-10Qi, where p is price in dollar's per cup and Qi is the number of cups demanded per week by the i th consumer.Find the market demand curve using algebra. Draw an individual demand curve and the market dema
Gsbwnw Reply
suppose the production function is given by ( L, K)=L¼K¾.assuming capital is fixed find APL and MPL. consider the following short run production function:Q=6L²-0.4L³ a) find the value of L that maximizes output b)find the value of L that maximizes marginal product
Abdureman
types of unemployment
Yomi Reply
What is the difference between perfect competition and monopolistic competition?
Mohammed
Got questions? Join the online conversation and get instant answers!
Jobilize.com Reply
Practice Key Terms 2

Get Jobilize Job Search Mobile App in your pocket Now!

Get it on Google Play Download on the App Store Now




Source:  OpenStax, Algebra and trigonometry. OpenStax CNX. Nov 14, 2016 Download for free at https://legacy.cnx.org/content/col11758/1.6
Google Play and the Google Play logo are trademarks of Google Inc.

Notification Switch

Would you like to follow the 'Algebra and trigonometry' conversation and receive update notifications?

Ask