\documentclass{jarticle}
\usepackage{amsmath}
\begin{document}
\begin{align}
f(s,u)=&819200000000000000000000 \left(521 m^4+m^2 (1979 s+729 u)-729 s u\right)\nonumber \\
g(s,u)=&32768000000000000000000/s \left(6 s^2 \left(193 s \sqrt{-\frac{s \left(2 m^6-m^4 (s+u)-2 m^2 s u+s u (s+u)\right)}{\left(m^2-s\right)^4}}
+386 u \sqrt{-\frac{s \left(2 m^6-m^4 (s+u)-2 m^2 s u+s u
(s+u)\right)}{\left(m^2-s\right)^4}}-400 u\right)+3858 m^6 \sqrt{-\frac{s \left(2 m^6-m^4 (s+u)-2 m^2 s u+s u (s+u)\right)}{\left(m^2-s\right)^4}}+2 m^4 s \left(3279 \sqrt{-\frac{s \left(2 m^6-m^4 (s+u)-2 m^2 s u+s u
(s+u)\right)}{\left(m^2-s\right)^4}}+14425\right)+m^2 s \left(-6174 s \sqrt{-\frac{s \left(2 m^6-m^4 (s+u)-2 m^2 s u+s u (s+u)\right)}{\left(m^2-s\right)^4}}-7716 u \sqrt{-\frac{s \left(2 m^6-m^4 (s+u)-2 m^2 s u+s u
(s+u)\right)}{\left(m^2-s\right)^4}}+18025 s+18025 u\right)\right)
\label{eq:e407}
\end{align}
\end{document}
\end{document}
2015/01/08 ltboxes.dtx v1.1h
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2015/01/11 ltfloat.dtx v1.2b
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2015/01/11 ltfssbas.dtx v3.0y
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2015/01/14 ltoutput.dtx v1.2n
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