Question

Given that f(x)=3x+2 and g(x)=x^2-3x-4,find (gof)(7)

Answer 1

gof(x)=3
`x^(2)`-9x-10

Explanation:

gof(x)=3(
`x^(2)`-3x-4)+2

gof(x)=3
`x^(2)`-9x-12+2

gof(x)=3
`x^(2)`-9x-10

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