Like terms are the ones that have same variables.
Such as:
• x is like term to 3x
,
• y is like term to 1/2y
,
• x^2 is like term to 6x^2
,
• r^3 is like term to -2r^3
Now, looking at the choices:
1. Like terms are:
2. Like terms are:
3. Like terms are:
All other terms in each question are just "terms", not like terms.