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if the equationsx2+ax+b=0 and x2+cx+d=0 have a common root and the first equation has equal roots,then prove that 2(b+d)=ac

bittu , 9 Years ago
Grade 12th pass
anser 1 Answers
Sourabh Singh

Last Activity: 8 Years ago

Use the values of Discriminant and compare both the equations . After comparing you will get the expression involvinga , b , c ,d .

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