Precalculus Examples

$- 2 \sqrt{9 y} + 10 \sqrt{y}$

Step 1

Simplify each term.

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Step 1.1

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

$- 2 \sqrt{3^{2} y} + 10 \sqrt{y}$

Step 1.2

Pull terms out from under the radical.

$- 2 (3 \sqrt{y}) + 10 \sqrt{y}$

Step 1.3

Multiply $3$ by $- 2$ .

$- 6 \sqrt{y} + 10 \sqrt{y}$

$- 6 \sqrt{y} + 10 \sqrt{y}$

Step 2

Add $- 6 \sqrt{y}$ and $10 \sqrt{y}$ .

$4 \sqrt{y}$

$[\begin{array}{c} x^{2} & \frac{1}{2} \\ \sqrt{π} & \int x d x \end{array}]$