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for what value of k ,(-4) …

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for what value of k ,(-4) is the zero of polynomial x2-x-(2k+2)

    • Posted by Rekha Garg 6 years, 7 months ago

    CBSE > Class 10 > Mathematics
    • 3 answers

    Rekha Garg 6 years, 7 months ago

    Thanks

    0Thank You

    Yogita Ingle 6 years, 7 months ago

    Zero of the polynomial is -4

    p(x) =x² - x - (2k +  2)

    p(x) = x²-x-2k-2

    p(-4)=0

    0=-4²-(-4)-2k-2

    0=16+4-2k-2

    0=18-2k

    2k=18

    k=18/2=9

    0Thank You

    Rekha Garg 6 years, 7 months ago

    k=9

    1Thank You

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