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If x^(2) + ax + b = 0 and x^(2) + bx + ...

If `x^(2) + ax + b = 0 and x^(2) + bx + a = 0` have a common root, then the numberical value of a + b is :

A

1

B

0

C

` -1`

D

none of these

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The correct Answer is:
C
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