Mathematics
Grade10
Easy

Question

Identify the value of c that would make the trinomial factorable using the perfect-square pattern.
x2 - 10x + c

  1. 45
  2. 4
  3. 16
  4. 25

The correct answer is: 25


    Using the pattern (a - b)2 = a2 - 2ab + b2,
    (x)2 - 2(x)(5) + (5)2 = (x - 5)2
    So, c = 52 = 25

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