a n a m = a n + m
a n a m = a n - m
( a n ) m = a nm
( ab ) n = a n b n
a - 1 = 1 a
a - n = 1 a n
a 0 = 1
( a b ) n = a n b n
ab + ac = a ( b + c )
a 2 + 2ab + b 2 = ( a + b ) 2
a 2 - b 2 = ( a + b ) ( a - b )
a 2 - 2ab + b 2 = ( a - b ) 2
x = - b ± b 2 - 4 a c 2 a Quadratic formula y = m x + b Slope-intercept form of a straight line y - y 1 = m ( x - x 1 ) Point-slope form of a straight line m = y 2 - y 1 x 2 - x 1 Slope of a straight line passing through the points ( x 1 , x 2 ) and ( y 1 , y 2 )
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