Solve the Square Root Equation: sqrt(x) = 20

Question

$\sqrt{x}=20$

00:02 Let's find X together.

00:05 First, we will square both sides to isolate X.

00:12 Remember, squaring and taking the square root cancel each other out.

00:19 Now, break down the exponent into multiplication, and then calculate.

00:25 And that's how we solve the problem! Great job!

To solve this problem, follow these steps:

$\sqrt{x} = 20$

Step 2: Square both sides of the equation to eliminate the square root. When you square a square root, you are left with the number inside the square root:

$(\sqrt{x})^2 = 20^2$

$x = 400$

Therefore, the solution to the problem is $x = 400$ .

The correct choice from the provided options is 400.

400