Evaluate Using the Given Value -2x^2+1 for x=-3

$- 2 x^{2} + 1$ for $x = - 3$

Step 1

Replace the variable $x$ with $- 3$ in the expression.

$- 2 {(- 3)}^{2} + 1$

Step 2

Simplify each term.

Raise $- 3$ to the power of $2$ .

$- 2 \cdot 9 + 1$

Multiply $- 2$ by $9$ .

$- 18 + 1$

Step 3

Add $- 18$ and $1$ .

$- 17$