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    katyp12's Avatar
    katyp12 Posts: 1, Reputation: 1
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    #1

    Aug 22, 2009, 03:26 PM
    a quadratic equation
    The length of a rectangle is three times its width.If the width were increased by 4 and the length remained the same the resulting rectangle would have an area of 231 square inches.Find the dimensions of the original rectangle
    Curlyben's Avatar
    Curlyben Posts: 18,514, Reputation: 1860
    BossMan
    		  
    #2

    Aug 22, 2009, 03:27 PM
    Thank you for taking the time to copy your homework to AMHD.
    Please refer to this announcement: Ask Me Help Desk - Announcements in Forum : Homework Help
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    galactus Posts: 2,271, Reputation: 282
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    #3

    Aug 22, 2009, 04:38 PM
    We are told that L=3W.

    The area of a rectangle is Length times width.

    The width is increased by 4, so we have W+4

    The area is then L(W+4)=231

    But, L=3W:

    3W(W+4)=231

    Solve the quadratic.
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