Question

What polynomial has roots of -5, 2, and 4 ?

Answer 1

what's the "root" of a polynomial?

Answer 2

x3 - x2 - 22x + 40
x3 + x2 - 22x - 40
x3 + 3x2 - 18x - 40
x3 - 3x2 - 18x + 40

Answer 3

that's all the choices

Answer 4

right.... so, when it's said it has say "2 roots", what does that mean?

Answer 5

lemme put it differently, in the equation below

(x+1)(x+2)=0

how many "roots" does that have?