# How do you solve 2x^2 = 242?

Mar 29, 2018

$x = \pm 11$

#### Explanation:

First a fall we have to divide $242$ by $2$ then we have to do under root of $121$.

$2 {x}^{2} = 242$
$\implies {x}^{2} = \frac{242}{2} = 121$
$\implies x = \pm \sqrt{121}$
$\implies x = \pm 11$

:-)