Question

Which of the following are like terms?

12x
A
-8
3x2
15x
-X
x

Answer 1

12x
15x
-x
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Answer 2

12x, 15x, -x, and x are like terms.

Explanation:

These are terms that can be combined together in equations because they are multiplied by the same term or they are integers, etc. (BTW, I'm not sure if 3x2 means 3 times 2 or 3 times x times 2, if it is 3 times x times 2, then that is also a like term!)