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Check wheather the equation (x+2)³=2x(x²-1) is …

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Check wheather the equation (x+2)³=2x(x²-1) is quadratic equation

    • Posted by Piyush Singh 6 years ago

    CBSE > Class 10 > Mathematics
    • 1 answers

    Sia ? 6 years ago

    We have (x + 2)3 = 2x (x2 - 1)

    {tex}\implies{/tex}x3 + 6x2 + 12x + 8 = 2x3 - 2x

    {tex}\implies{/tex}x3 - 6x2 - 14x - 8 = 0

    it is not of the form ax2 + bx + c = 0, {tex}a \ne 0{/tex}

    {tex}\therefore{/tex} the given equation is not a quadratic equation.

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