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if m is an integer is \(m^3\cdot 3^{k+3}-m^2\cdot 3^{2k+3}+m\cdot 3^{k+2}-1\)an integer??

 Aug 9, 2020
 #1
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Sorry, cannot read your LaTex.

 Aug 9, 2020
 #2
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Assuming that k is also a positive integer and that the backslant does not mean divide, I don't see anything in the expression that would introduce a fraction.  Of course, I don't know what the "cdot" means so I ignored it. 

 Aug 9, 2020
 #3
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I think what s/he meant was

 

If m is an integer is \(m^3\cdot 3^{k+3}-m^2\cdot 3^{2k+3}+m\cdot 3^{k+2}-1\) an integer?

 Aug 9, 2020

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