### Home > AC > Chapter 4 > Lesson 4.1.1 > Problem4-6

4-6.

Copy and simplify the following expressions by combining like terms.

1. $y+3x−3+2x^2+8x−5y$

Rearrange and put like terms together.

$2x^2+3x+8x+y−5y−3$

Combine like terms.

$2x^2+11x−4y−3$

1. $2x+4x^2−6x^2−9+1−x−3x$

Follow the steps in part (a).

1. $2y^2+30y−3y^2+4y−14−y$

Follow the steps in part (a).

$−y^2+33y−14$

1. $−10+3xy−3xy+y^2+10−y^2$

A positive and negative of equal value combine to equal 0.

Follow the steps in part (a).