determine the condition for the roots …
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Posted by Akash Gupta 7 years, 2 months ago
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Naveen Sharma 7 years, 2 months ago
Ans. Let one root = x
Then other root = x +2
As We know,
Difference of roots = \(\sqrt D \over a\)
where D = b2-4ac
\(=> 2= {\sqrt{b^2-4ac} \over a}\)
\(=> 2a= \sqrt{b^2-4ac}\)
Squaring Both Sides We Get
\(=> 4a^2 = b^2 - 4ac\)
This is the required Condition.
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