Expressions Test Review

Combine Like Terms

100

x + 3x - 9x

-5x

200

15x - 12 - 3x + 9

12x - 3

300

4.5x + 7.8 - 2.3x - 3.1

2.2x + 4.7

400

1.2a - 5.6 + 3.4a + 2.1

2.2a - 3.5

500

3/5m - 2/5 - 1/2m + 7/10

1/10m + 3/10

Factor

100

Find the greatest common factor:

3x and 15xy

3x

200

Find the greatest common factor

12 and 32x

4

300

Factor Completely:

15h + 12

3(5h + 4)

400

Factor Completely:

55y - 15xy

5y(11 - 3x)

500

The area of a rectangular porch is 7h + 14. Factor completely to find the dimensions of the porch.

7(h+2)

Expand/Distribute

100

Rob is trying to simplify the expression. What would he do first?

1/3(c + 5) - 2

Distribute the 1/3 to c and 5

200

4(-3x+2)

-12x + 8

300

-2(2.35y - 4)

-4.7y + 8

400

1/3(12y + 18)

4y + 6

500

-1.8(2x + 4)

-3.6x - 7.2

Add Expressions

100

(4x - 3) + (5x - 2)

9x - 5

200

(1.8y + 3.2) + (2.1y - 0.5)

3.9y + 2.7

300

(-2.4y + 5) + (7.1 - 2)

4.7y + 3

400

3(2x - 5) + (4x + 7)

10x - 8

500

A triangle has sides with lengths of 

(3x - 2), (5x), (7x + 1)

Find the perimeter of the triangle.

15x - 1

Subtract Expressions

100

(14x + 2) - (5x + 4)

9x - 2

200

(5a + 8) - (2a - 4)

3a + 4

300

(5a + 8) - 3(2a - 4)

-a + 20

400

(6.4m + 3.7) - (3.1m - 1.5)

3.3m + 2.2

500

(5/6x + 3/4) - (1/3x + 5/8)

1/2x + 1/8