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8 February, 07:07

7x^2-x=6 find the sloution

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  1. 8 February, 07:30
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    Minus 6 both sides

    7x²-x-6=0

    hmm

    using ac method we get

    7x²-7x+6x-6=0

    group

    (7x²-7x) + (6x-6) = 0

    7x (x-1) + 6 (x-1) = 0

    undistribute

    (7x+6) (x-1) = 0

    set to zero

    7x+6=0

    7x=-6

    x=-6/7

    x-1=0

    x=1

    x=-6/7 or 1
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