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Rajan@2021
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Show that x=-bc/ad is a solution of the quadratic equation ad²(ax/b+2c/d)x+bc²=0

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This is the basic and conceptual question from quadratic equation chapter in which we have given a equation ad²(ax/b+2c/d)x+bc²=0 and we have been asked to show that x=-bc/ad is the root of the equation

Kindly solve the above problem in detail

RS Aggarwal, Class 10, chapter 4A, question no 4

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1 Answer

  1. Given a(ax​/b+2c/d)x+b=0  … (1)
    x=bc/ad is solution of equation (1), if it satisfy the equation.
    a(bc​/bd+2c/d)×bc​/ad+b=0
    (−bcd+2bcd)/bd²×bcd+b=0
    bcd​/bd²×bcd+b=0
    b+b=0
    Which is  true
    So x=bc/ad is a solution of given quadratic equation

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