### Home > PCT > Chapter Ch9 > Lesson 9.1.3 > Problem 9-43

9-43.

Substitute the value of '*u*' back in.

1. Factor out a 2*x*^{3} in the numerator.

2. Factor the remaining binomial in the numerator.

3. Simplify.

9-43.

Substitute the value of '*u*' back in.

1. Factor out a 2*x*^{3} in the numerator.

2. Factor the remaining binomial in the numerator.

3. Simplify.