Question

How do i factor -4c^2+19c+5

Answer 1

-1(4c+1)(c-5)

Explanation:

First get rid of the negative by factoring out -1, then determine what factors of 5, the constant term(the number without the x), multiply by 4 to add up to -19. The only factors of 5 are 1 and 5, so we will use these. (4c+1)(c-5) can be "foiled" to check our answer.