WAEC Mathematics 2021 Question 50

Question 50

Algebraic Expressions

For what value of x is (4 − 2x)/(x + 1) undefined?

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

Answer: B (−1)

Explanation

The fraction is undefined when the denominator is zero: x + 1 = 0, so x = −1.