if x=-3 and x= 2/3 are solutions of quadratic equation mx²+7x+n=0,find the values of m&n.​

Question

if x=-3 and x= 2/3 are solutions of quadratic equation mx²+7x+n=0,find the values of m&n.​

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Luna 5 months 2021-07-17T12:10:06+00:00 1 Answers 0 views 0

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    2021-07-17T12:11:53+00:00

    Answer:

    here’s ur answer:

    first,

    mx^{2} + 7x+ n = 0\\

    Put x=-3 in given equation..

    m-3^{2} + 7(-3) + n=0\\

    =>  9m +n =21——————(1)

    Put x= 2/3 in given equation

    4m + 9n =0

    Now solve

    m= 3

    n= -6

    hope it works..

    Step-by-step explanation:

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