### Home > A2C > Chapter 13 > Lesson 13.1.1 > Problem 13-20

13-20.

Isolate the radical andsquare both sides.

*x* = 9

Multiply both sides by common factors to eliminate the denominators.

*a* = −9

13-20.

Isolate the radical andsquare both sides.

*x* = 9

Multiply both sides by common factors to eliminate the denominators.

*a* = −9