Question
The roots of the equation x4+mx3+71x2+px+q = 0 are in AP with common difference = 1. Find p+q, if m is negative.
Answer: Option B
:
B
Option (b)Sum of product of roots taken 2 at a time = 71Roots =2, 3, 4, 5p = - sum of product of roots taken 3 at a time = -154q = product of roots = 120 p+q = -34
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:
B
Option (b)Sum of product of roots taken 2 at a time = 71Roots =2, 3, 4, 5p = - sum of product of roots taken 3 at a time = -154q = product of roots = 120 p+q = -34
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