Question

c^2 - 4c - 32

I got

(c - 4) (c - 8)

but i think its wrong because the do not match to make it squared, what am I doing wrong?

Answer 1

Nothing gets squared. When you "FOIL" multiply your factors, you do not get the right polynomial. That must be what you mean.

The correct factors are (c+4)(c-8). One of the constants has to be odd and the other has to be even to get -32 as the last term.

Answer 2

Factor Completely: 2x2 - 32

Answer 3

7-3b/b^2-12b+20