# If h(x) = x – 7 and g(x) = x^{2}, find the value that is equivalent to (g*h)(5)?

We will use the concept of functions in order to find the required answer.

## Answer: (g*h)(5) = 5^{3} - 7× 5^{2} = -50

Let us see how we will use the concept of functions in order to find the required answer.

**Explanation:**

We have been given two functions, h(x) = x – 7 and g(x) = x^{2}

(g * h) (x) = g(x) × h(x)

= x^{3} - 7x^{2}

Substitute 5 for x in (g * h) (x) = x^{3} - 7x^{2} to find (g * h)(5).