Question

Given f(x)=2x^2+8 and g(x)=5x-6, find each function. (f+g)(x) (f*g)(x)

Answer 1

$f(x)=2x^{2}+8 \\ \\ g(x)=5x-6 \\ \\ (f+g)(x)=2x^{2}+8+5x-6=2x^{2}+5x+2 \\ \\ (f*g)(x)=(2x^{2}+8)(5x-6)=10x^{3}-12x^{2}+40x-48$

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