deletions | additions       diff --git a/untitled.tex b/untitled.tex  index e8ccea0..443b257 100644  --- a/untitled.tex  +++ b/untitled.tex 
...
\item For prime powers of $x$ the numerator is also the power of $x$.  \item For a perfect square or cube power of $x$, the prime divisor is the numerator.  \item For a composite power of $x$ the numerator is a polynomial in $a$, with coefficients of the divisors of $x$.  \item After removing the denominator coefficient of the power of $x$, all raw numbers coefficients  present in the above expansion are prime. \end{itemize}  Focus on the composites \begin{equation}  x^4 \to -\frac{2}{a^2}\\