Answer:
b^(6c) = 3a is the only answer
Explanation:
There is only one answer that works, and you put a check by it.
b is the base
When it is raised to the 6c power, you get 3a.
b^(6c) = 3a is the only answer
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The only other possible answer would be
a = (1/3) b^(6c) which isn't there.