What is the standard form of $y= x^3(x+2) -x^4$ ?

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Answer 1 · 2016-02-04T22:39:13

$2x^3$

Distribute brackets and collect 'like terms'

$y=x^3(x+2) -x^4 = x^4 + 2x^3 - x^4 = 2x^3$

What is the standard form of y= x^3(x+2) -x^4 y= x^3(x+2) -x^4 ?