Do you ask for clarification for a term or clarification of a term?

Like terms are a pair of numbers with the same base and exponent. So an example of a like term would be 2x+4x <-- these are like terms because they have the same base (x) and the same exponent (1)...

The term to term rule is the difference between the numbers in the sequence, like this:-2, 4, 6, 8the gap is 2+ so your answer would be=+2but if you have a question like this:-1, 4, 9, 16 you need to...

Unlike terms.

When the independent variable is of the same degree. Ex. 3x and -5x are like terms.6 and 9 are like terms.7x^2 and 9x^3 are NOT like terms.

We often call "undefined terms" variables. Their value is not known; it can vary. And thus the name we assign them is variable.