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WAEC Mathematics 2018 Question 2

Question 2

Indices

Evaluate: (64½ + 125⅓)2

  1. A.121
  2. B.144
  3. C.169
  4. D.196
Show the answer and explanation

Answer: C (169)

Explanation

64½ = 8 and 125⅓ = 5, so (8 + 5)² = 169.