# How do you solve the equation #x^2-324=0#?

##### 3 Answers

Oct 1, 2017

Given:

Add 324 to both sides:

Use the square root on both sides:

This means that the solutions are

Oct 1, 2017

#### Explanation:

Oct 1, 2017

#### Explanation:

This can be solved by factorising the quadratic using the difference of two squares.

Set each factor equal to