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algebra

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The width of a rectangle is 3ft less than the lenght. The area is 4ft^2. Find the lenght and the width

  • algebra - ,

    ahh, you fixed it, but surely you should have been able to do this easy question.

    length -- x
    width -- x-3
    x(x-3) = 4
    x^2 - 3x - 4 = 0
    (x-4)(x+1) = 0
    x = 4, or x = -1, the last part is a silly answer

    length = 4
    width = 1

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