# How do you solve the equation: 4x^2=20?

Apr 3, 2018

$x = \pm \sqrt{5}$

#### Explanation:

We can start by dividing both sides by $4$. Doing this, we get:

${x}^{2} = 5$

Next, we can take the square root of both sides to get:

$x = \pm \sqrt{5}$

There are no perfect squares to factor out of $\sqrt{5}$ so we could simplify this. Thus, $\pm \sqrt{5}$ is our answer.