Verify the relationship between the zeroes and the coefficient of x²+11x+18

Question

Verify the relationship between the zeroes and the coefficient of x²+11x+18

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Kinsley 2 weeks 2021-10-08T06:45:33+00:00 1 Answer 0 views 0

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    2021-10-08T06:47:03+00:00

    Answer:

    sum of zeroes = -11

    product of zeroes =18

    Step-by-step explanation:

    x2+11x+18

    x2+2x+9x+18

    x(x+2)+9(x+2)

    (x+9)(x+2)

    x+9=0

    x=-9

    x+2=0

    x=-2

    sum of zeroes = -9-2

    -b/a=-11

    a=1,b=-11,c=18

    -11/1=-11

    =-11

    product of zeroes=-9×(-2)

    c/a =18/1

    =18

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