If two of the zeros of the cubic polynomial ax3 + bx2 + cx + d are 0 then the third zero is ______.

Question

KollegeApply · Accepted Answer

If two of the zeros of the cubic polynomial ax3 + bx2 + cx + d are 0 then the third zero is underlinebb((-b)/a). Explanation: Let α, 0, 0 be the zeros of ax3 + bx2 + cx + d. Then, sum of zeros = (-b)/a ⇒ α + 0 + 0 = (-b)/a ⇒ α = (-b)/a Hence, the third zero is (-b)/a.

AChoose Your Answer