Basic Math Examples

$- 4 \sqrt{5} \sqrt{4}$

Step 1

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

$- 4 \sqrt{5} \sqrt{2^{2}}$

Step 2

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

$- 4 \sqrt{5} \cdot 2$

Step 3

Multiply $2$ by $- 4$ .

$- 8 \sqrt{5}$

Step 4

The result can be shown in multiple forms.

Exact Form:

$- 8 \sqrt{5}$

Decimal Form:

$- 17.88854381 \dots$