Question

Answer this question

Answer 1

Answer: 20ab

Explanation:

First, use FOIL to expand each term.

term 1:

`25a^(2) + 5ab + 5ab + b^2`

term 2:

`25a^2-5ab-5ab+b^2`

Then, simply subtract term 2 from term 1.

`20ab`

Hope it helps :) and let me know if you want me to elaborate.