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bboyspin
bboyspin asked in Science & MathematicsMathematics · 1 decade ago

I need help with my math homework?

I'm kinda stuck on finding the discrimant for this problem:

4x - 1 = -9/x

can anyone help me?

3 Answers

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  • Anonymous
    1 decade ago
    Favorite Answer

    4x - 1 = -9/x {x not = 0}

    4x^2 - 1x = -9 {multiply both sides by x}

    4x^2 - 1x + 9 = 0

    b^2 - 4ac = 1 - 4(4)(9) = - 143

  • victorsrn
    Lv 4
    1 decade ago

    4x - 1 = -9/x (get x alone)

    so subtract 4x from each side

    -1 = -9 - 4x

    -----------

    x

    multiply each side by x

    -x = -9 - 4x

    add 4x to each side

    3x = -9

    x = -3

  • Anonymous
    1 decade ago

    i dont know what a discrimant is...but

    -1x=-9-4x

    ----------------------

    3x=-9

    ------------------

    x=-3

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