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    Mathematics
    Grade10
    Easy

    Question

    Factor the trinomial represented by the algebra tiles

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

    The correct answer is: (2x + 5)(x + 1) 

      2x2 + 7x + 5
      a = 2, b = 7, c = 5
      ac = 10
      Factors of 10 are 5 and 2.
      2x2 + 2x + 5x + 5
      = 2x(x + 1) + 5(x + 1)
      = (2x + 5)(x + 1)

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