### Home > AC > Chapter 2 > Lesson 2.2.3 > Problem2-115

2-115.

Simplify the following expressions. Homework Help ✎

1. $x+3x−3+2x^2+8x−5$

Rearrange in order of power and combine like terms.

$2x^2+12x−8$

1. $3y+14y^2−6y^2−9y+1−y−3y$

Use the same strategy as in part (a).

1. $2y^2+30xy−2y^2+4y−4x$

Use the same strategy as in part (a).

$30xy+4y−4x$

1. $x−0.2x$

$x$ is the same as $1x$.