Question

How do you factor the expression `40p^2-13p-36`?

Answer 1

It is `(5p+4)(8p-9)`

Explanation:

You can factor this as follows just remember that `13=45-32` hence
we have that

#40p^2-(45-32)*p-36=40p^2-45*p+32*p-36= 5p*(8p-9)+4*(8p-9)=(5p+4)*(8*p-9)#