Chapter 2 Review

Simplify Expressions

100

4x + 3y + x

5x + 3y

200

3y + 2y + y² + 5 + y

y² + 6y + 5

300

3y² + 2xy + 1 + 3x + y + 2x²

No Like Terms

400

x + x - 3 + 4x² + 2x - x

4x² + 3x - 3

500

20 + 3xy - 3 + 4y² + 10 -2y²

2y² + 3xy +27

Distributive Property

100

3(x - 1)

3x - 3

200

-11(x - 4)

-11x + 44

300

-(-3 + 12x)

3 - 12x

400

3(-2x + 10)

-6x + 30

500

2x + 5 -(3x - 2)

-x + 7

Evaluate Expressions

100

2 + 3x   when x=4

14

200

x² + 3    when x=6

39

300

(x - 4)²     when x=8

16

400

3x² - 2x + 1     when x=2

9

500

3(-2x + 2y) - y² + (1 + 2y)²     when x=2 and y=3

46

Solve for a Variable

100

x + 9 = 5

x = -4

200

x - 5 = 10

x = 15

300

5x + 8 = 23

x = 3

400

6 - 2x = 12

x = -3

500

12 - 3y = 15

x = -1

Solving Linear Equations

100

-x+3=6

x=-3

200

10=x+5+x

x=2.5 

or x=2 1/2

300

4y+7=2y+7

y=0

400

1+3x-x=x-4+2x

x=5

500

3y+7-y=5+2y+2

All Real Numbers