1. What is a Term?
A number, a variable, or a product of numbers and variables.
Terms make up expressions (numbers, variables, and operations; not equal sign).
There are like and unlike terms.

2. 4x 8x2 unlike Different types of variables are unlike terms.
To be like terms, the variable part
is what has to be the same,
not the numbers.
unlike

3. 2xy - x2y 1 unlike Different types of variables are unlike terms.
The variable part is what has
to be the same, not the numbers.
unlike

4. 3xy -9xy LIKE These are like terms even though
they contain both an x and a y.
3xy
-9xy
LIKE

5. These are also like terms.xy 1 1 yx
LIKE
We write variables in
alphabetical order.

6. xy yx LIKE 5 -3 Even if we put numbers in front
(coefficients) of each variable,
they are still like terms. xy yx
LIKE 5 -3

7. Suppose we have:
It could also be:
This is the commutative property.

8. Or:
Commutative property again

9. Write in notes:

10. Write in notes: