JEE MATHEMATICS MCQ: QUADRATIC EQUATIONS

1 Easy

1 of 1

Application +4 | -1

For

a \ne b

, if the equation

{x^2} + ax + b = 0

and

{x^2} + bx + a = 0

have a common root, then the value of

a + b

equals

View answer and explanation

Correct option: A

- 1

Option A (-1) is correct because substituting the common root into both equations and solving the resulting system leads to a + b = -1.

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