$p(x) =2x^2+3x+7$,$q(x)=6x^2+8x-9$Find q(x)-p(x)

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$p(x) =2x^2+3x+7$ , $q(x)=6x^2+8x-9$ Find q(x)-p(x)

A $8x^2+11x-2$

B $4x^2+5x+16$

C $-4x^2-5x+16$

D $4x^2+5x-16$

Answer:

4x^2+5x-16

$p(x) =2x^2+3x+7$

$q(x)=6x^2+8x-9$

$q(x)-p(x)=x^2(6-2)+x(8-3)+(-9-7)$

$=4x^2+5x-16$

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