Question

The product of (a − b)(a − b) is a2 − b2.

A. Sometimes
B. Always
C. Never

Its C. right? Because it's not asking the product of (a *+* b)(a − b) is a2 − b2. Its asking for the product of (a *−* b)(a − b) is a2 − b2.

Am I right?

Answer 1

If a=b, then your statement is true.(both are zero)
So, it is A

Answer 2

Thanks :)

Answer 3

It is also true if b=0