Answer:
7b and b.
Explanation:
Like terms are the terms in an algebraic expression that have the same variables and powers. This means the like terms the expression 6x^3 + 5 x^2 + 2 x^3 are 6x^3 and 2x^3 because they have the same variables and the exponent, and therefore, they can be added.
Now in our case, the terms with the same variables and same exponents are 7b and b, and therefore, these are the like terms.