



 
Lourdes, I'm going to look at the second expression
There are four terms in this expression, 17, 2a, 5a and 1. There is one variable, the letter a. The constant terms are the terms that don't contain the variable. Thus they are 17 and 1. The variable terms are the terms that contain the variable. They are 2a and 5a. The coefficients are the numbers that appear with the variables in the variable terms. In this expression the coefficients are 2 and 5. Now you try the other three expressions. Penny  


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