Middle School Math Combine Like Terms

Distribution/Combine Like Terms

Distribution Method

• Let's not forget why we distribute:

• It's to show that you can multiply a number to all the terms inside of the parenthesis

• It's important to put the right signs when doing so.

• In the picture, you'll see that 4 was multiplied to both the x and the 3 inside of the parenthesis

• You can not combine "x" and 12 because they are not like terms

• 
  

Poll

What level do you think you're on?

• I can teach this

• I can do this on my own

• I need help sometimes

• ONLY GOD CAN HELP ME!

Multiple Choice

$$-5\left(-4m+12-6m\right)$$  

• $$50m+16$$  

• $$50m-60$$  

• $$-50m-60$$  

• $$-20m-60$$  

Combining Like Terms

• You have to combine the like terms.

• You can do this before or after you multiply the outside term

• Please remember your signs

Multiple Choice

Simplify the following:

$$-16m-13m+12+8m$$  

• None of these
  

• $$-21m-12$$  

• $$-21m+12$$  

• $$21m-12$$  

Multiple Choice

Distribute the following:

$$3\left(-12h+4-3h\right)$$  

• $$45h\ -12$$  

• $$45h\ -12$$  

• $$12+45$$  

• $$-45h\ +12$$