Evaluating Expressions

9.6.1 Evaluating Expressions

9.6.1 • Evaluating Expressions

Each expression represents two numbers. Evaluate the expressions and find the two numbers.

$1 \pm \sqrt{49}$

The correct answers are: 8, -6.

$\frac{8 \pm 2}{5}$

The correct answers are: 2, $\frac{6}{5}$ .

$\pm \sqrt{(- 5)^{2} - 4 \cdot 4 \cdot 1}$

The correct answers are: 3, -3.

$\frac{- 18 \pm \sqrt{36}}{2 \cdot 3}$

The correct answers are: -2, -4.