6(1 - 3k2)
6(3k2 - 1)
6(3k - 1)
6(1 - 3k)
Correct answer is C
\(\frac{54k^2 - 6}{3k + 1} = \frac{6(9k^2 - 1)}{3k + 1}\) = \(\frac{6(3k + 1) - (3k - 1)}{3k + 1}\) = 6(3k - 1)
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