### Home > INT1 > Chapter 1 > Lesson 1.1.2 > Problem1-19

1-19.

Evaluate the expressions below for the given values.

Substitute the given value for $x$. Evaluate the expression following the Order of Operations.

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

• $−2(−3)^2 + 1$
$−2(−3)(−3) + 1$
$−18 + 1$
$−17$

1. $2 ^ { x } \text { for } x = 3$

• $2^3 = 2 \cdot 2 \cdot 2$

1. $4 x - 4 \text { for } x = 3$

• Refer to part (a).

1. $2 \cdot 3 ^ { x } \text { for } x = 5$

• Refer to parts (a) and (b).