Question 9
Algebraic ExpressionsSimplify: (54k2 − 6)/(3k + 1).
- A.6(1 − 3k2)
- B.6(3k2 − 1)
- C.6(3k − 1)
- D.6(1 − 3k)
Show the answer and explanation
Answer: C (6(3k − 1))
Explanation
54k2 − 6 = 6(9k2 − 1) = 6(3k − 1)(3k + 1). Cancel (3k + 1) to get 6(3k − 1).