Basic Math Examples

$3 \sqrt{- (- 9)} + 2$

Step 1

Simplify each term.

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Step 1.1

Multiply $- 1$ by $- 9$ .

$3 \sqrt{9} + 2$

Step 1.2

Rewrite $9$ as $3^{2}$ .

$3 \sqrt{3^{2}} + 2$

Step 1.3

Pull terms out from under the radical, assuming positive real numbers.

$3 \cdot 3 + 2$

Step 1.4

Multiply $3$ by $3$ .

$9 + 2$

Step 2

Add $9$ and $2$ .

$11$