CPM Homework Banner

Home > AC > Chapter 12 > Lesson 12.1.2 > Problem 12-16


Because the denominators are the same, you can add the numerators together.

Factor 9 out of the numerator and simplify the equation by looking for factors that make 1.


Subtract the numerators, then try factoring.
Be sure to distribute the negative when performing the subtraction.

Look for factors that make 1.