### Home > A2C > Chapter 7 > Lesson 7.3.5 > Problem7-224

7-224.

Solve $\sqrt { 21 x - 3 } - \sqrt { 5 x + 1 } = 6$ and check your solution. Remember: Square twice!

Since there are square roots, you will need to square both sides.
Be sure to use the Distributive Property.
Note that you will need to square both sides twice.