If the equations x² – px + q = 0 and x² + qx – p = 0 have a common root :

If the equations x² – px + q = 0 and x² + qx – p = 0 have a common root, then which one of the following is correct?
(a) p – q = 0
(b) p + q – 2 = 0
(c) p + q – 1 = 0
(d) p – q – 1 = 0

Anurag Mishra Professor Asked on 19th February 2016 in Maths.
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    Answer: (b) p + q – 2 = 0

    Anurag Mishra Professor Answered on 20th February 2016.
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