Terms whose variables (and their exponents such as the 2 in x

Example: 7x and 2x are like terms because the variables are both "x"

But 7x and 7x

^{2}) are the same.Example: 7x and 2x are like terms because the variables are both "x"

But 7x and 7x

^{2}are NOT like terms (they are Unlike Terms)See: Term

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