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    Mathematics
    Grade10
    Easy

    Question

    What is the factored form of x squared minus 2 x minus 8 ?

    1. (x - 1) (x + 3)    
    2. (x + 4) (x + 1)    
    3. (x + 1) (x - 5)    
    4. (x + 2) (x - 4)    

    The correct answer is: (x + 2) (x - 4)

      x squared minus 2 x minus 8 equals x squared minus 4 x plus 2 x minus 8
      = x(x - 4) + 2(x - 4)
      = (x + 2)(x - 4)

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