CPM Homework Help : CAAC Problem 2-115

Simplify the following expressions. Homework Help ✎
1. x + 3x − 3+ 2x² + 8x − 5
2. 3y + 14y² − 6y² − 9y + 1 − y − 3y
3. 2y² + 30xy − 2y² + 4y − 4x
4. x − 0.2x

Hint (a):

Rearrange in order of power and combine like terms.

Answer (a):

2x² + 12x − 8

Hint (b):

Use the same strategy as in part (a).

Hint (c):

Use the same strategy as in part (a).

Answer (c):

30xy + 4y − 4x

Hint (d):

x is the same as 1x.