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Math Help - Please Help Me Get Started

  1. #1
    Junior Member
    Joined
    Oct 2007
    Posts
    37

    Please Help Me Get Started

    SOLVE: (x+k) (x-l)= 0
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  2. #2
    Newbie
    Joined
    Oct 2007
    From
    Central Coast, NSW
    Posts
    12
    Is this correct: (x+k)(x^2-l^2) = 0 ? If so, have you seen the 'difference of two squares' rule? You might want to apply it to the second factor then.

    Also, 0*a = 0 for any number a, so, if you can make any of your factors 0, then the whole left hand side will be 0, which is what you want. Can you see what x you would have to choose in each factor to make it equal to 0?
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