It is best to say that the answer is 4*3^9. This way your understanding is clear to the helpers and I do not need to use a calculator to see if your answer is correct. Good job!
But surely you realize that all Nube knew for sure is that the expected answer was 78732.
Not knowing how that was calculated he/she could not have posted [imath]4\times 3^9[/imath].
But surely you realize that all Nube knew for sure is that the expected answer was 78732.
Not knowing how that was calculated he/she could not have posted [imath]4\times 3^9[/imath].
I don't know if I understood, but I had previously explained (thanks to your help) how I managed to arrive at the result, the exercise asks for the number of ways, so I did the multiplication
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