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If 8 is zero of polynomial …

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If 8 is zero of polynomial x square - 10x +k=0, then find the value of k?

    • Posted by Abhinav Bhardwaj 7 years, 6 months ago

    CBSE > Class 10 > Mathematics
    • 4 answers

    Siddhant Singh 7 years, 6 months ago

    Put x=8 in f(x) we get 8square - 10×8 + k=0 We get 64-80+k=0 Or k=80-64=16 So k=16

    1Thank You

    Shubham Kumar 7 years, 6 months ago

    16 is the value of k.

    0Thank You

    Suhani Srivastava 7 years, 6 months ago

    f (x) = x square - 10x + k f (8) = (8×8) - (10×8) + k 64 - 80 + k = 0 -16 + k = 0 k = 16

    2Thank You

    Tanya Teotia 7 years, 6 months ago

    Putting the value of = 8 so, 10X 8 +k= 0 80+ k= 0 K= - 80

    1Thank You

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