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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