### Home > CCA > Chapter 11 > Lesson 11.3.3 > Problem 11-98

11-98.

Is

Substitute and

*, then simplify.*

Did

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11-98.

Is

Substitute and

Did

Use the eTool below to help you with this problem.

Click on the link at right for the full eTool version: *11-98 HW eTool*