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WAEC Mathematics 2018 Question 33

Question 33

Algebraic Expressions

Find the values of x for which (x − 5)/(x(x − 1)) is undefined.

  1. A.0 or 5
  2. B.−5 or 5
  3. C.−1 or 5
  4. D.0 or 1
Show the answer and explanation

Answer: D (0 or 1)

Explanation

The fraction is undefined when x(x − 1) = 0, i.e. x = 0 or 1.