3. If a trinomial to be factored through reverse F. O. I. L. has a negative third term, the last terms of the binomial factors have opposite signs because two numbers with the same sign have a negative product while two numbers with opposite signs have a positive product.

A.

True

B.

False

False.

Two numbers with opposite signs have a negative product NOT positive product.

Here's a trinomial with a negative constant and binomial factors with constants with opposite signs:

x^2+x-6 = (x+3) (x-2)

We could write that one - (-x-3) (x-2) but that's not really the product of two binomials.

So it's true they have opposite signs, but that's because opposites multiply to a negative, wrong explanation in the answer, let's say false.