Question

Which of the following is a polynomial with roots -2, -3, and 3 ?

x3 + 4x2 + 9x + 24
x3 - 4x2 + 9x - 24
x3 + 2x2 + 9x + 18
x3 - 2x2 + 9x - 18

Answer 1

x^3 + 2x^2 + 9x + 18

Answer 2

ummm I think its x^3 -2x^2 + 9x - 18

the reasoning is (x+2)(x+3)(x-3)

the constant term is 2 x 3 x -3 = -18

Answer 3

Dont we have a choice for:
X^3+2x^2-9x-18 ?

Answer 4

Crap all the options are wrong, (I only used vieta to test the coefficient of x^2)

The correct answer is \( X^3+2x^2-9x-18 \)