(n54)2=n
<=>n108=n
<=>n108-n=0
<=>n.(n107-1)=0
<=>n=0 hoặc n107-1=0
<=>n=0 hoặc n107=1
<=>n=0 hoặc n=1
(n54)2 = n
=> n108 = n
<=> \(\left[\begin{array}{nghiempt}n=0\\n=1\end{array}\right.\)
\(\left(n^{54}\right)^{ }^2\)= n
\(n^{54.2}\) = n
\(n^{108}\) = n
=> n = 1 hoặc n = 0