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    sarahbeth09's Avatar
    sarahbeth09 Posts: 1, Reputation: 1
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    #1

    Mar 31, 2008, 04:18 PM
    a radical equation
    3 x (square root of) x + 3 = 15
    Thartge's Avatar
    Thartge Posts: 13, Reputation: 1
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    #2

    Apr 1, 2008, 06:52 AM
    Quote Originally Posted by sarahbeth09
    3 x (square root of) x + 3 = 15
    3 x (sqaure root of x) + 3 = 15
    (Subtract 3 from both sides)

    3 x (square root of x) = 12
    (Divide both sides by 3)

    (square root of x) = 4
    (Square both sides)

    x = 16

    I hope this helps. :)
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