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    HuiLi's Avatar
    HuiLi Posts: 17, Reputation: 1
    New Member
     
    #1

    Feb 16, 2010, 03:59 AM
    help me understand?
    how come (240+3xsquare)/x -24

    come become xsquare-24x+80?
    I know 3 x square & 240 is divided by 3,but how do I get from -24 to -24x?
    HuiLi's Avatar
    HuiLi Posts: 17, Reputation: 1
    New Member
     
    #2

    Feb 16, 2010, 04:08 AM

    anyone can help me confirm it?is (a)
    30/x + 2?
    (b) I don't know how to get though
    galactus's Avatar
    galactus Posts: 2,271, Reputation: 282
    Ultra Member
     
    #3

    Feb 16, 2010, 05:47 AM



    Multiply by x:



    Divide by 3:


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