### Home > AC > Chapter 5 > Lesson 5.2.1 > Problem 5-71

5-71.

Rearrange and put like terms together.

2*x*² + *x*² + 3*x* + 2*x* + 5 + 8

Combine like terms.

3*x*² + 5*x* + 13

Follow the steps in part (a).

How does the negative outside the parentheses change what is inside of it?

Follow the steps in part (a).

−*x*² + 4*x* + 6

Follow the steps in part (c).

5*x*

Follow the steps in part (c).