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WAEC Mathematics 2012 Objective — Question 9

Question 9 of 50 from the West African Examinations Council (WAEC) Mathematics 2012 Objective paper, with the correct answer and a full explanation.

Simplify: (54k²−6)/(3k+1)

A. 6(1−3k²)
B. 6(3k²−1)
C. 6(3k−1)Correct
D. 6(1−3k)

Explanation

54k²−6 = 6(9k²−1) = 6(3k−1)(3k+1). Dividing by (3k+1): result = 6(3k−1).

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