What is the standard form of # y= (-2x-9)^3-(3x+2)^2#?

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Answer 1 · 2017-05-02T07:09:34

#y=-8x^3-117x^2-498x-733#

standard form: #Ax + By = C#

start by expanding each parenthesis:

#(-2x-9)^3 = -8x^3-108x^2-486x-729#

&

#(3x+2)^2=9x^2+12x+4#

subtract each set of equations:

#y=(-8x^3-108x^2-486x-729)-(9x^2+12x+4)#

#→ y=-8x^3-117x^2-498x-733#