Question

If G(x) = (x + 3)2, and F(x) = x2 + 7x, what is the function G(F(x))?

A. (x2 + 7x + 3)2
B. (x + 3)4 + 7(x + 3)2
C. (x + 3)2 + x2 + 7x
D. ln(x + 3)

Answer 1

We have :
\[G(F(x))=G(x^2+7x)\\
~~~=\left(x^2+7x+3\right)^2\]