Basic Math Examples

$4 \sqrt{28 a^{2}}$

Step 1

Rewrite

$28 a^{2}$ as

${(2 a)}^{2} \cdot 7$ .

Tap for more steps...

Step 1.1

Factor

$4$ out of

$28$ .

$4 \sqrt{4 (7) a^{2}}$

Step 1.2

Rewrite

$4$ as

$2^{2}$ .

$4 \sqrt{2^{2} \cdot 7 a^{2}}$

Step 1.3

Move

$7$ .

$4 \sqrt{2^{2} a^{2} \cdot 7}$

Step 1.4

Rewrite

$2^{2} a^{2}$ as

${(2 a)}^{2}$ .

$4 \sqrt{{(2 a)}^{2} \cdot 7}$

$4 \sqrt{{(2 a)}^{2} \cdot 7}$

Step 2

Pull terms out from under the radical.

$4 (2 a \sqrt{7})$

Step 3

Multiply

$2$ by

$4$ .

$8 a \sqrt{7}$

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