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JAMB Mathematics 1988 Question 15

Question 15

Algebraic Expressions

If a = −3, b = 2, c = 4, evaluate
(a3 − b3 − c1/2)/(b − a − c)

  1. A.37
  2. B.−37/5
  3. C.37/5
  4. D.−37
Show the answer and explanation

Answer: D (−37)

Explanation

Top: −27 − 8 − 2 = −37. Bottom: 2 + 3 − 4 = 1. So the value is −37.