Basic Math Examples

$y = 9 \sqrt{4}$

Step 1

Rewrite $4$ as $2^{2}$ .

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

Step 2

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

$y = 9 \cdot 2$

Step 3

Multiply $9$ by $2$ .

$y = 18$