find the value of k, if -1 is a zero of the polynomial of p(x) =kx square -4x + k​

Question

find the value of k, if -1 is a zero of the polynomial of p(x) =kx square -4x + k​

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Ariana 1 month 2021-08-16T19:32:23+00:00 1 Answer 0 views 0

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    2021-08-16T19:33:30+00:00

    p(x)=kx²-4x+k

    as -1 is zero of polynomial

    So,x= -1

    p(-1)=k(-1)²-4(-1)+k

    = k+4+k

    So, 2k+4=0

    2k=0-4

    2k= -4

    k= -4/2

    k= -2

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