Answer:
2l and l
Explanation:
First let's see the definition of like terms.
The like terms are the terms which are having the same variable and the same exponent.
Examples: 2x and -3x

4xy and 2xy
You can see that the like terms are having the same variables and the same exponents. The coefficients may be vary.
Now let's move on to our question.
The given terms are 2l, 2, l
You can there are two terms which are have the same variable and the same exponent.
Therefore, the like terms are 2l and l.