Question

Is (a-b)^2= a^2-b^2?

Answer 1

NO THE ANSWER IS
(a-b) ^2 = a^2 + b^2 -2ab

Answer 2

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

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

there's difference between them..