If the equations x^(2) + bx - 1 = 0 and ...

If the equations `x^(2) + bx - 1 = 0 and x^(2) + x + b = 0` have a common root different from -1, then |b| is equal to

A

2

B

3

C

`sqrt(3)`

D

`sqrt(2)`

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The correct Answer is:

C

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