Question

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Answer 1

9x^2+12x-1

Explanation:

Answer 2

`g(f(x)) = 3x^2 + 6x -11`

Explanation:

g(f(x)) means that we find an equation where f is a function of g. so we substitute f(x) in all x values for g, so therefore

`g(f(x)) = 3(x^2 +2x -4) + 1`

then we simplify this equation and solve for g(f(x)).

`g(f(x)) = 3x^2 + 6x - 12 + 1` we have multiplied by 3 the equation of f(x)

`g(f(x)) = 3x^2 + 6x -11` we then add or subtract like terms which are those terms that have the same variables.