Question

If (x-2) and (x-1) two of the factors of a cubic polynomial whose product of roots is zero, then sum of roots of given cubic polynomial is:

• A. 7
• B. 6
• C. 3
• D. 4

Answer 1

The correct option is C

3

The product of roots is 0, means that one of the root is 0. So, we have, x-2 and x-1, the roots are 2 and 1. Hence the sum of the roots is 3.