Sum of the zeroes of 3x²+(2k+1) x + 12 is -7 .Then the value of k is

Question

Sum of the zeroes of 3x²+(2k+1) x + 12 is -7 .Then the value of k is

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Alexandra 1 month 2021-08-19T08:02:44+00:00 1 Answer 0 views 0

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    2021-08-19T08:04:12+00:00

    Answer:

    -23/3

    Step-by-step explanation:

    let us take ,

    3xsquare + {2k +1 }x+12 as p{x}

    p{x} = p (1)

    p(1)= 3 + (2kx+x)+12 = -7

    3+(2k)+(1)+12= -7

    3+2k+1+12= -7

    2k + 16 = -7

    2k = -7 -16

    =-23

    k = -23 / 2

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