Question

Which of the following is correct?
(a – b)^2 = a^2 + 2ab – b^2
(a – b)^2 = a^2 - 2ab + b^2
(a – b)^2 = a^2 – b^2
(a + b)^2 = a^2 + 2ab – b^2​

Answer 1

In the given equations the 2nd one is the correct one