Question

What is the formulae of 4ab

Answer 1

Answer:

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

Step-by-step explanation:

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

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

4ab = 4ab satisfies here .