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Home > AC > Chapter 7 > Lesson 7.2.3 > Problem 7-77

7-77.

Distribute to remove the parenthesis.
15x² − 12x − 15x²
Add like terms.
12x

Follow the steps outlined in part (a).

Start with a generic rectangle to simplify, then use the same method as part (a).

x² − 3

Use the strategy shown in part (a) to solve this problem.