Combining Like Terms-Mangram 10/7

Combining Like Terms

M. Mangram 10/7/2020

In today's lesson, you will need...

• Paper

• Pencil

• Calculator

What are like terms??

Terms that contain the same variables raised to the same power. Or have the "same last name".

Let's Watch a Video

https://youtu.be/US95J1g6iY4

WHY DO COMBINE LIKE TERMS???

RECAP QUESTIONS...

What do you remember from the past?

What is a coefficient?

2x

-12x

1/2x

Multiple Choice

What are the coefficients of the following expression?
3x + 4y + 6z + 3

• 3
• 3, 4, 6
• 4, 3
• 6, 4

What is a constant?

5x-7

.5y+100

3/4x+16

Multiple Choice

What are constants in an expression?

• The number before a letter
• The numbers without an letters.
• The + and - signs
• The letters

Multiple Choice

Variable terms and constant terms can be put together. 

• True 
• False

Multiple Choice

"x" terms in an expression and "y" terms in an expression can added or subtracted together. 

• True
• False

Let's practice combining some expressions

Calculators Please!

Multiple Choice

3x + 2x + 5y =

• 5x + 5y
• 2x + 5y
• -5x + 5y
• 3x + 3y

Multiple Choice

n -10 +9n -3

• -3
• 9n-3
• n
• 10n -13

Multiple Choice

n -10 +9n -3

• -3
• 9n-3
• n
• 10n -13

Multiple Choice

-6k + 7k

• k
• -k
• 12k
• -12k

Just to see if you were listening...

Multiple Choice

Terms that have the same variables with the same corresponding exponents 

• like terms 
• terms 
• equivalent expressions 
• variable 

Multiple Choice

Variable terms are called "variable" because:

• they are pretty.
• they never change.
• they vary (change).
• they don't have letters.

Multiple Choice

What are coefficients?

• The letters in an expression
• The numbers without a letter
• The same as constants
• The number before a letter