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If alpha and beeta are zeros …

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If alpha and beeta are zeros of a polynomial x square -2x-8 than for a quadratic polynomial whose zeroes are 3alpha and 3beeta

    • Posted by Anuj Upadhyay 7 years ago

    CBSE > Class 10 > Mathematics
    • 1 answers

    Ram Kushwah 7 years ago

    (please replace a  nab with alpha and beta) 

    FOR x2 * -2x-8 the  say a and b are zeros then

    a+b=2  and  a*b=-8

    so the polynomial with 3a and 3 b as zeros will be

    x2 - 3 *(a+b)*x +9a*b

    = x2  - 3*2 x +9*-8

    = x2 -6x -72 ans

    1Thank You

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