Question

The product of (a − b)(a − b) is a^2 − b^2.

My answer is always

Am I right?

Answer 1

Check again, (a-b)^2= a^2-2ab+b^2

Answer 2

Oh wait it would be never

Answer 3

Yup, unless some magic miracle occurred in math to make it so.

Answer 4

when b=0, it will work
but thats not what your teacher is looking for i think