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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