When is it appropriate to combine like terms?
Create an example showing the parts of an expression.
Terms have to be the same before you can combine them through addition or subtraction.
A constant is a term that looks like a regular number.
A variable is an algebraic term that has an unknown value.
A coefficient shows how many variables there are.
Variables can only be combined with other variables of the same letter and exponent.
1. 3x^2 + 11x + 3
2. 9x + 5y + 12
3. 36 - 11z^2