Đáp án:
\( - \dfrac{1}{3}\)
Giải thích các bước giải:
\(\begin{array}{l}
\dfrac{{{{\left( {{2^2}} \right)}^5}.{{\left( {{3^2}} \right)}^4} - {{2.2}^9}{{.3}^9}}}{{{2^{10}}{{.3}^8} + {2^8}{{.3}^8}{{.2}^2}.5}}\\
= \dfrac{{{2^{10}}{{.3}^8} - {2^{10}}{{.3}^9}}}{{{2^{10}}{{.3}^8} + {2^{10}}{{.3}^8}.5}}\\
= \dfrac{{{2^{10}}{{.3}^8}\left( {1 - 3} \right)}}{{{2^{10}}{{.3}^8}\left( {1 + 5} \right)}}\\
= \dfrac{{ - 2}}{6} = - \dfrac{1}{3}
\end{array}\)
