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    Bhavraaj Singh's Avatar
    Bhavraaj Singh Posts: 1, Reputation: 1
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    #1

    Apr 16, 2014, 09:39 AM
    factorise completely
    x^3 + 3x^2 + 3x - 7 factorise completely
    ebaines's Avatar
    ebaines Posts: 12,131, Reputation: 1307
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    #2

    Apr 16, 2014, 09:47 AM
    Hint to get started: note that the integer term is -7, and since 7 is a prime number then if the equation is factorable then it must be divisible by either x-1 or x+1, or possibly both. Do the long division and see what you get.
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