Question

Which of the identity is not correct?

Select one:
(a-b)^2 = a^2 - 2ab - b^2
(a+b)(a-b) = a^2 - b^2
(a-b)^2 = a^2 - 2ab + b^2
(a+b)^2 = a^2 + 2ab + b^2​

Answer 1

Answer:

1st option is incorrect

Answer 2

Answer:

(a-b)²=a²-b²-2ab is the incorrect option