Question

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

x3 + 3x2 + 9x + 27
x3 - 3x2 + 9x - 27
x3 + 9x2 + 9x + 81
x3 - 9x2 + 9x - 81
19. 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

1) simplify this (x+3)(x+3)(x--3)
2) simplify this (x+2)(x+3)(x-3)

Answer 2

1)2
2)4