Here is my equation:
\documentclass{article}
\usepackage{amsmath} % for 'align*' environment
\begin{document}
\begin{equation} \label{eq:Vo}
V_o = \frac{ L_3 R_3 R_L + L_3 R_2 R_L s + R_2 R_3 R_L}{X}
\end{equation}
where
\begin{align*}
X&=\bigl( C_2 C_1 L_2 L_3 R_1 R_3 R_L + C_2 C_1 L_2 L_3 R_1 R_2 R_L + C_2 C_1 L_1 L_3 R_1 R_3 R_L + C_2 C_1 L_1 L_3 R_1 R_2 R_L + C_2 C_1 L_1 L_2 R_1 R_3 R_L + C_2 C_1 L_1 L_2 R_1 R_2 R_L\bigr) s^4 \\
&\quad+ \bigl(C_2 C_1 L_2 R_1 R_2 R_3 R_L + C_2 C_1 L_1 R_1 R_2 R_3 R_L + C_1 L_2 L_3 R_1 R_3 + C_1 L_2 L_3 R_1 R_2 + C_1 L_1 L_3 R_1 R_3 + C_1 L_1 L_3 R_1 R_2 + C_1 L_1 L_2 R_1 R_3 + C_1 L_1 L_2 R_1 R_2 + C_2 L_2 L_3 R_3 R_L + C_2 L_2 L_3 R_2 R_L + C_2 L_1 L_3 R_3 R_L + C_2 L_1 L_3 R_2 R_L + C_2 L_1 L_2 R_3 R_L + C_2 L_1 L_2 R_2 R_L\bigr) s^3 \\
&\quad+ \bigl(C_1 L_3 R_1 R_3 R_L + C_1 L_3 R_1 R_2 R_L + C_1 L_2 R_1 R_2 R_3 + C_1 L_1 R_1 R_3 R_L + C_1 L_1 R_1 R_2 R_L + C_1 L_1 R_1 R_2 R_3 + C_2 L_3 R_1 R_3 R_L + C_2 L_3 R_1 R_2 R_L + C_2 L_2 R_2 R_3 R_L + C_2 L_2 R_1 R_3 R_L + C_2 L_2 R_1 R_2 R_L + C_2 L_1 R_2 R_3 R_L + L_2 L_3 R_3 + L_2 L_3 R_2 + L_1 L_3 R_3 + L_1 L_3 R_2 + L_1 L_2 R_3 + L_1 L_2 R_2\bigr) s^2 \\
&\quad+ \bigl(C_1 R_1 R_2 R_3 R_L + C_2 R_1 R_2 R_3 R_L + L_3 R_3 R_L + L_3 R_2 R_L + L_3 R_1 R_3 + L_3 R_1 R_2 + L_2 R_2 R_3 + L_2 R_1 R_3 + L_2 R_1 R_2 + L_1 R_3 R_L + L_1 R_2 R_L + L_1 R_2 R_3\bigr) s + \bigl(R_2 R_3 R_L + R_1 R_3 R_L + R_1 R_2 R_L + R_1 R_2 R_3\bigr)
\end{align*}
\end{document}
I tried few methods that were the answers to some other questions on this same forum, but not worked, the equation runs out of margin.
Why cant there be a method which allows the ex: /quad to continue on to the next line when the margin end is encountered ?
Does someone know a trick which does stop at margin and continue where it had left from a new line until it ends and a new /quad begins.
Thanks in advance.