Multiple Choice Questions on Find the roots of the quadratic equation 2x2 3x 9 0 ........ for Mathematics - All Exams Preparation

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Multiple Choice Questions

Find the roots of the quadratic equation 2x2 3x 9 0 ........

Quantitative Aptitude ( CCS) Quadratic Equations
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    Find the roots of the quadratic equation: 2x2 + 3x - 9 = 0?

    -3,3/2

    Correct Answer

    3,2/3

    Incorrect Answer

    3,-2/3

    Incorrect Answer

    0,2

    Incorrect Answer
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    Explanation:


    2x2 + 6x - 3x - 9 = 0
    2x(x + 3) - 3(x + 3) = 0
    (x + 3)(2x - 3) = 0
    => x = -3 or x = 3/2.

    By: MIRZA SADDAM HUSSAIN
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