if one root of the equation 3x^2-kx-2=0 is 2 find the value of k also find the other root

Question

if one root of the equation 3x^2-kx-2=0 is 2 find the value of k also find the other root

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Madelyn 2 weeks 2021-10-09T02:44:23+00:00 1 Answer 0 views 0

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    2021-10-09T02:46:20+00:00

    Step-by-step explanation:

    given : x=2 (root=2)

    3 {x}^{2} - kx - 2 = 0

    3( {2)}^{2}  - k(2) - 2 = 0

    3(4) - 2k - 2 = 0

    12 - 2 - 2k = 0

    10 - 2k = 0

    2k = 10

    k =  \frac{10}{2}

    k = 5

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