### Home > ACC7 > Chapter 3 Unit 2 > Lesson CC3: 3.2.5 > Problem3-114

3-114.

Simplify the following expressions.

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 $1x$.