Quadratic Equations

If the roots of the equation x²-bxax-c=m-1m+1 are equal but opposite in sign, then the value of of m will be

(a) a-ba+b
(b) b-aa+b
(c) a+ba-b
(d) a+bb-a

Brahmastra, Quadratic Equations Q No. 10.

1 Answers

466

Himanshu Giria ·2014-04-14 18:55:04

Sum of roots =0â†’-b / a =0;
therefore m=
(A)(a-b)/(a+b)

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