Exercise 1.

In $ {\mbox{${\mathbb{Q}}$}}[x]$ we consider the polynomial $ b = x^4 + 6x^3 + 11x^2 + 6x + 1$ . We assume that $ b$ is the square of a polynomial $ a$ in $ {\mbox{${\mathbb{Q}}$}}[x]$ . Using symbolic Newton Iteration, compute such a polynomial $ a$ .

Answer 1  
\fbox{
\begin{minipage}{13 cm}
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\mbox{ } \\
\mbox{ } \\
\mbox{ } \...
...\mbox{ } \\
\mbox{ } \\
\mbox{ } \\
\mbox{ } \\
\mbox{ } \\
\end{minipage}}

Answer 2  
\fbox{
\begin{minipage}{13 cm}
\mbox{ } \\
\mbox{ } \\
\mbox{ } \\
\mbox{ } \...
...\mbox{ } \\
\mbox{ } \\
\mbox{ } \\
\mbox{ } \\
\mbox{ } \\
\end{minipage}}

Marc Moreno Maza
2008-01-31