Unit 5 ~ Lesson 1:Combining Like

Terms

CYK Review

Questions #1—2What are like terms?

Expressions with the same variable and exponent parts.

Example 1: Determine if these are "Like" or "Unlike" terms.

LIKE UNLIKE LIKE UNLIKE

Question #3Remember!

Coefficient: In a term, it’s the number in front of the variable. *If there is no number in front of the variable, the numerical coefficient is understood to be 1

Examples

4a -15x 9y

Question #4How do we combine like

terms?...

Step 1: Identify numbers with the same variable and exponent.

Step 2: Group the like terms

Step 3: Combine like terms by adding or subtracting the coefficients.

Question #5: Simplify

9a2 - 6a - 11a2 + 10a

9a2 - 11a2 -6a + 10a

-2a2 + 4a

Step 1: Identify terms with matching variables and exponents.

Step 2: Group the like terms

Step 3: Combine like terms by adding coefficients.

Have a marvelous day, Mathletes!