### Home > CC3 > Chapter 3 > Lesson 3.2.5 > Problem3-114

3-114.

Simplify the following expressions. Homework Help ✎

1. $x+3x−3+2x^2+8x−5$

Rearrange and put like terms together.

Combine like terms.

$x+3x+8x−3−5+2x^2$

$12x−8+2x^2$

Now, put in order of power.

$2x^2+12x−8$

1. $3y+14y^2−6y^2−9y+1−y−3y$

Follow the steps in part (a).

1. $2y^2+30xy−2y^2+4y−4x$

Follow the steps in part (a).

$30xy+4y−4x$

1. $x−0.2x$

Follow the steps in part (a).

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