Question

Match each of the following with its correct simplified solution

1. ab(a + b)
2. (a + b)(2a + 2b)
3. (a + b)2
4. (a + b)(a - b)

a. a2 - b2
b. 2a2 + 4ab + 2b2
c. a2 + 2ab + b2
d. a2b + ab2

Answer 1

The 3rd one is your answer!!

Answer 2

1. ab(a + b)
a^2b + a^2

answer is d. a2b + ab2

2. (a + b)(2a + 2b)
2a^2 + 2ab +2ab + 2b^2
2a^2 + 4ab + 2b^2

answer is b. 2a2 + 4ab + 2b2

3. (a + b)2
=a^2 + 2ab + b^2

answer is c. a2 + 2ab + b2

4. (a + b)(a - b)
= a^2 - b^2

answer is a. a2 - b2