Q22 of 78 Page 14

Mark the Correct alternative in the following:

If the difference of the roots of is unity, then


Difference of the roots

1


1


p2 – 4q = 1


p2 – 4q + 4q2 – 4q2 = 1


p2 + 4q2 = 1 + 2(2)(q) + (2q)2


p2 + 4q2 = (1 + 2q)2

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