Question

.What polynomial has roots of -5, -4, and 1 ?

x3 - 8x2 - 11x + 20

x3 - x2 + 22x + 40

x3 + x2 - 22x - 40

x3 + 8x2 + 11x - 20

Answer 1

@StudyGurl14

Answer 2

Will give medals!

Answer 3

@Mertsj

Answer 4

I forgot how to do this...

Answer 5

If -5 is a root, then (x -(-5)) = (x + 5) is a factor.
If -4 is a root, then (x - (-4)) = (x + 4) is a factor.
If 1 is a root, the (x - 1) is a factor.

Answer 6

To get the polynomial, multiply these 3 factors:

(x + 5)*(x +4)*(x - 1) = ? @gavin39