8th Grade- Unit 1 Review

Vocabulary

100

What is a binomial?

An expression with two terms.

200

What are like terms?

Common variable and degree

300

What is a polynomial?

An expression with more than one term.

400

What is absolute value?

Distance from 0.

500

What is a the acronym for order of operations and what do each letter stand for?

PEMDAS:
Parentheses
Exponents
Multiplication
Division
Addition
Subtraction

Evaluating

100

Evaluate: 

-7+3

-4

200

Evaluate: 

5x-7 when x=2

3

300

Evaluate: 

x³-2 when x=-1

-3

400

Evaluate: 

(x-2)(x+4)+8 when x=0

0

500

Evaluate: 

-x²+5-12 when x=-2

-11

Simplify/Factor

100

Simplify: 

(x-1)(x+1)

x²-1

200

Factor:

3s-3t

3(s-t)

300

Factor: 

2x-14y

2(x-7y)

400

Simplify: 

(x+1)²

x²+2x+1

500

Simplify: 

(2x+5)³

8x³+60x²+50x-125

Combining Like Terms

100

3-5x+1

-5x+4

200

(2x+1)+3x

5x+1

300

3x-5x+5-7+1x

-1x-2

400

20x-2-5-6x+14

14x+7

500

3x-(-5)+3x-+5

6x

Equations

100

Solve for x: 

6x=36

x=6

200

Solve for x:

1/2x=4

x=8

300

Solve for x:

5x-4=16

x=4

400

Solve for x:

9-5/4x=19

x=8

500

Solve for x:

4x²=9

x=3, x=-3