#### Answer

The expression is evaluated to $39$.

#### Work Step by Step

To evaluate the ezpression for $x = -3$, we plug in $-3$ where we see $x$ in the expression:
$$(-3)^{2} - 10(-3)$$
Evaluate exponents first, according to order of operations:
$$9 - 10(-3)$$
We do the multiplication first:
$$9 + 30$$
Finally, we add:
$$39$$