3 years ago

Simplify the following expression 2x^5+3x^3-5x^2+x^2+7x^5-3x^3-4

1 answer:

6 0

$2x^5+3x^3-5x^2+x^2+7x+1+7x^5-3x^3-4\\\\=(2x^5+7x^5)+(3x^3-3x^3)+(-5x^2+x^2)+7x+(-4+1)\\\\=\boxed{9x^5-4x^2+7x-3}\to\boxed{C.}$

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