Question

Question 3 of 10

Which of the following represents the set of possible rational roots for the
polynomial shown below?
2x^3+ 5x^2 – 8x – 20 = 0

Answer 1

2x^3-8x+5x^2-20

2x(x^2-4)+5(x^2-4)

(2x+5)(x^2-4)

(2x+5)(x+2)(x-2)