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Please and this math question has to do it with a question that is a lot of work

Please and this math question has to do it with a question that is a lot of work-example-1

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f(x)=x+3\hspace{5em}g(x)=x^2-2\hspace{5em}(fg)(-8)=f(-8)* g(-8) \\\\[-0.35em] \rule{34em}{0.25pt}\\\\ f(-8)=(-8)+3\implies f(-8)=-5 \\\\[-0.35em] ~\dotfill\\\\ g(-8)=(-8)^2-2\implies g(-8)=(-8)(-8)-2\implies g(-8)=62 \\\\[-0.35em] ~\dotfill\\\\ (fg)(-8)\implies f(-8)* g(-8) \implies (-5)(62)\implies \text{\LARGE -310}

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