Question

For the equation 1x+a+1x+b=1x+c, if the product of roots is zero, the sum of roots is:

• A. 0
• B. 2abb+c
• C. 2bcb+c
• D. -2bcb+c

Hint:

Use Vieta’s formulas when roots are involved.

Answer 1

The Correct Option is B

Reducing to quadratic form and using product of roots =0, one root is zero. Using Vieta’s formula gives: Sum of roots=(2ab)/(b+c)