Question

what is formula for a²+b² and a²-b²​

Answer 1

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

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

Answer 2

a2+b2=(a+b)^2 - 2ab

a2-b2=(a+b)^2- 2b^2 -2ab