Question

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

My answer is always

Am I right?

Answer 1

Expand it and find out if it's always equal...

\[\Large (a − b)(a − b) = a^2 - ab - ab + b^2 = ...\]

Answer 2

Its always, right?

Answer 3

Simplify what I gave, or at least try to, before you answer whether it's always or never.