Question

What is the value of (a+b) whole squre - (a-b) whole square

Answer 1

[(a + b)^2] - [(a - b)^2]

[a^2 + b^2 + 2ab] - [a^2 + b^2 - 2ab]

a^2 + b^2 + 2ab - a^2 - b^2 + 2ab

2ab + 2ab

4ab

Answer= 4ab