Question

If h(x) = x - 7 and g(x) = x², which expression is equivalent to (gºf)(5?

Answer 1

Answer:

(5^2)(5-7)

Step-by-step explanation:

So we know h(x)=x-7.

We also know g(x)=x^2

We need to plug in these values for (g*h)(5)

This would equal:

((x-7)*x^2)(5)

Since parthese can also be considered multipcation symbols, we can think of this as:

(x-7)(x^2)(5)

Lets distrubute the 5 to all the x's:

(5-7)(5^2)

Which is:

($5^{2}$)(5-7)

This looks like answer C.

Hope this helps!