Question

a^2 + b^2 = ??? (what)​

Answer 1

Answer:

(a+b)^2 - 2ab

or , (a-b)^2+2ab.

Step-by-step explanation:

Answer 2

Answer:

Step-by-step explanation:

We know that

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

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

So, a^2 + b^2 formula can be

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

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