# How do you simplify sqrt 4times sqrt 4?

Aug 12, 2016

$\sqrt{4} \times \sqrt{4} = 4$
A Square and a square root are inverse operations and cancel each other out.

#### Explanation:

Each operation has an inverse. One does, the other undoes.

$+ 6 - 6 = 0$

$8 \times 3 \div 3 = 8$

${\sqrt{x}}^{2} = x$

In this case we have two possible methods

$\sqrt{4} \times \sqrt{4} = \sqrt{16} = 4$

OR ${\left(\sqrt{4}\right)}^{2}$ = 4