Algebra Examples

$y = \sqrt{- 9 - 2}$

Step 1

Subtract $2$ from $- 9$ .

$y = \sqrt{- 11}$

Step 2

Rewrite $- 11$ as $- 1 (11)$ .

$y = \sqrt{- 1 (11)}$

Step 3

Rewrite $\sqrt{- 1 (11)}$ as $\sqrt{- 1} \cdot \sqrt{11}$ .

$y = \sqrt{- 1} \cdot \sqrt{11}$

Step 4

Rewrite $\sqrt{- 1}$ as $i$ .

$y = i \sqrt{11}$