# Given g(x) = 3x^2 + 4 how do you find g(-2)?

Jul 6, 2018

$g \left(- 2\right) = 16$

#### Explanation:

$\text{substitute "x=-2" into } g \left(x\right)$

$g \left(\textcolor{red}{- 2}\right) = 3 {\left(\textcolor{red}{- 2}\right)}^{2} + 4$

$\textcolor{w h i t e}{\times \times} = \left(3 \times 4\right) + 4$

$\textcolor{w h i t e}{\times \times} = 12 + 4 = 16$