\[
\begin{array}{ccc}
    \begin{array}{rcl}
    x_1^8 & = & 0,1870 \\
    x_2^8 & = & 1,3844 \\
    x_3^8 & = & 0,4506 \\
    \end{array}
& \qquad &
    \begin{array}{rcl}
    x_1 & = & 0,1868 \\
    x_2 & = & 1,3846 \\
    x_3 & = & 0,4506 \\
    \end{array}
\end{array}
\]