Question

Which of the following represents the set of possible rational roots for the polynomial shown below?

Answer 1

In math algebra, a cubic function is a function of the form. f(x) = ax3 + bx2 + cx + d where "a" is nonzero.

`2x^3+5^{}x^2-8x-10`

x1 = -3.25

x2 = -0.91

x3 = 1.67

The answer will be letter D {+/- 1/2 +/-1 +/-2 +/-5/2 +/-4 +/-5 +/-10}