Combining like terms

Combining like terms

The basics

-x+3x²

number of terms: 2

Variable: x

Coefficients: -1, 3

Rules:

*Always evaluate parenthesis

*Combine terms that have the same variable and degree

8x + 3x

11x

2y²+7y²-y²+2

8y²+2

8-2(x+4)

8-2x-8

-2x

Fill in the Blanks

5x-2x

Fill in the Blanks

8m-m-3m+5

Fill in the Blanks

-x²+5x+x²

Fill in the Blanks

3(y+2)-4y

Fill in the Blanks

-(z+2)-2(1-z)

As a function...

It takes you 45 minutes to get to school. You spend t minutes riding the bus at an average speed of 0.4 miles per minute. The rest of the time is spent walking at o.o6 miles per minute.

Algebraic function

d=o.4t+0.06(45-t)

Fill in the Blanks

Simplify the function:

Fill in the Blanks

Use the function to find out how far away the school is if you ride the bus for 30 minute.

Poll

My feelings about combining like terms are...

• I am awesome!

• Pretty good!

• Umm, maybe ok.

• No way am I ready!