### Home > A2C > Chapter 7 > Lesson 7.1.2 > Problem7-28

7-28.

Given $f\left(x\right) = −2x^{2} − 4$ and $g\left(x\right) = 5x + 3$, calculate:

1. $g\left(−2\right)$

Substitute the given value for x into the indicated equation.

1. $f \left(−7\right)$

1. $f \left(g\left(−2\right)\right)$

Substitute the entire g(−2) into the equation f(x) for x and evaluate. Follow the same guidelines for part (d).

1. $f \left(g\left(1\right)\right)$