Given f(x)=7x-9 and g(x) =x^2, choose the expression for (f*g)(x)

ANSWER

EXPLANATION

It was given that;

and

We want to find an expression for the composition function;

We substitute x² into f(x)=7x-9

This will give us:

so, converting firstly the mixed fractions to improper fractions and then "adding".

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