The equations ax^(2) + bz + a =0, x^(3) ...

The equations `ax^(2) + bz + a =0, x^(3) -2x^(2) +2x -1 =0` have tow roots common, then find the value of a+b.

A

1

B

-1

C

0

D

none of these

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The correct Answer is:

C

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