Mathway

Visit Mathway on the web

Start 7-day free trial on the app

Start 7-day free trial on the app

Download free on Amazon

Download free in Windows Store

Take a photo of your math problem on the app

Precalculus Examples

\sqrt{40}

$\sqrt{40}$

Step 1

Rewrite

40

$40$ as

2^{2} \cdot 10

$2^{2} \cdot 10$ .

Tap for more steps...

Step 1.1

Factor

4

$4$ out of

40

$40$ .

\sqrt{4 (10)}

$\sqrt{4 (10)}$

Step 1.2

Rewrite

4

$4$ as

2^{2}

$2^{2}$ .

\sqrt{2^{2} \cdot 10}

$\sqrt{2^{2} \cdot 10}$

\sqrt{2^{2} \cdot 10}

$\sqrt{2^{2} \cdot 10}$

Step 2

Pull terms out from under the radical.

2 \sqrt{10}

$2 \sqrt{10}$

Step 3

The result can be shown in multiple forms.

Exact Form:

2 \sqrt{10}

$2 \sqrt{10}$

Decimal Form:

6.32455532 \dots

$6.32455532 \dots$

Enter YOUR Problem

using Amazon.Auth.AccessControlPolicy;

Mathway requires javascript and a modern browser.

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

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