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By induction, 3^(2n+2) - 8n - 9 is a multiple of which largest number?
A16
B64
C128
D32
Answer & Solution
Correct answer: B. 64
At n = 1 the value is 64 and at n = 2 it is 704 = 64 x 11, so 64 is the greatest common divisor.
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