Ch1 lesson 1

​Pre-Algebra: Chapter 1 Lesson 1

​Algebraic Expressions

do all the math possible, MAY NOT result in a single numeric answer.

simplify

Part of an algebraic expression separated by addition and subtraction signs

terms

REVIEW vocabulary

Multiple Choice

The following expression contains how many terms?

$$-3x+y-2-5x$$  

• 2

• 3

• 4

• 5

when an algebraic expression has no like terms and no parenthesis

​simplest form

terms that have the SAME variable raised to the SAME power

​like terms

Lesson Vocabulary

Multiple Choice

Do the coefficients of like terms have to be the same?

• Yes

• No

​Coefficient

​Number in front of the variable


The "big number"

Multiple Choice

Are the following terms 'like' or 'unlike'....

3a

-7a

• Like

• Unlike

Multiple Choice

Are the following terms 'like' or 'unlike'....

-c²

-2c

• Like

• Unlike

Multiple Choice

Are the following terms 'like' or 'unlike'....

3a

3b

• Like

• Unlike

Multiple Choice

What are the like terms in this expression?

8x² +2x + 2x²

• 2x and 2x²

• 8x² and 2x²

• 8x² and 2x

• 8x² and 2x and 2x²

Add or subtract like terms to create one term.

​

​Combine like terms

Multiple Choice

a + a + a + a

• a + 4 
• 4a 
• a to the fourth power 
• 4a + 4 

Multiple Choice

Simplify the expression: 2x + 1 + 7x 

• 10x
• 10
• 9x + 1
• 9 + 1x

Multiple Choice

Simplify by combining like terms:
5a + 2b - 3a + 4

• 8a + 2b + 4
• 2a + 2b + 4
• 8ab
• 4ab + 4

Multiple Choice

5x + 3y + 5 + 4x + 3y + y + 8

• 9x + 7y + 13
• 6x + 2y + 2
• 25x + 2y + 3
• x + 7y + 12

Multiple Choice

-9x²+12x-15+4x²-7x+10

• -5x²+5x-5
• -5x²+5x+23

• 3x²-3x-5
• -10x²-5

Multiple Choice

Rewrite the expression by combining like terms.
5x² + 5y + 2x² + 4y² – 4x² + 2y² - 4y

• 3x² + 3xy + 6y

• 6y² + 2xy + 2x
• 7x² + 35x
• 3x² + 6y² + y

​You have to use the distributive property FIRST if there is something to distribute