=(2²)⁶.(3²)⁵+(2.3)⁹.2³.3.5/(2³)⁴.3¹²-(2.3)¹¹

=2¹².3¹⁰+2⁹.3⁹.2³.3.5/2¹².3¹²-2¹¹.3¹¹

=2¹².3¹⁰+2¹².3¹⁰.5/2¹¹.3¹¹(2.3-1)

=2¹².3¹⁰(1+5)/2¹¹.3¹¹.5

=2.6/3.5

=4/5

\(\dfrac{4^6.9^5+6^9.120}{8^4.3^{12}-6^{11}}\)

\(=\dfrac{\left(2^2\right)^6.\left(3^2\right)^5_{\cdot}+\left(2.3\right)^9.2^3.3.5}{\left(2^3\right)^4.3^{12}-\left(2.3\right)^{11}}\)

\(=\dfrac{2^{12}.3^{10}+2^9.3^9.2^3.3.5}{2^{12}.3^{12}-2^{11}.3^{11}}\)

\(=\dfrac{2^{12}.3^{10}+2^{12}.3^{10}.5}{2^{11}.3^{11}\left(2.3-1\right)}\)

\(=\dfrac{2^{12}.3^{10}.\left(1+5\right)}{2^{11}.3^{11}.\left(6-1\right)}\)

\(=\dfrac{2^{12}.3^{10}.6}{2^{11}.3^{11}.5}\)

\(=\dfrac{2^{13}.3^{11}}{2^{11}.3^{11}.5}\)

\(=\dfrac{2^2}{5}\)

\(=\dfrac{4}{5}\)

\(\frac{4^6.4^5+6^9.120}{8^4.3^{12}-6^{11}}\)

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`Answer:`

`(4^6 . 9^5 + 6^9 . 120)/(8^4 . 3^12  - 6^11)`

`= (2^12 . 3^10 + 2^9 . 3^9 . 2^3 . 3 . 5)/(2^12 . 3^12 - 2^11 . 3^11)`

`= (2^12 . 3^10 + 2^12 . 3^10 . 5)/(2^11 . 3^11(2 . 3 - 1))`

`= (2^12 . 3^10 (1 + 5))/(2^11 . 3^11 . 5)`

`= (2 . 6)/(3 . 5)`

`= 4/5`

\(\frac{4^6.9^5+6^9.120}{8^4.3^{12}-6^{11}}\) đề là như thế này à hay là sao ???

\(\frac{4^6.9^5+6^9.120}{8^4.3^{12}-6^{11}}\)

\(=\frac{2^{12}.3^{10}+2^9.3^9.2^3.3.5}{2^{12}.3^{12}-2^{11}.3^{11}}\)

\(=\frac{2^{12}.3^{10}+2^{12}.3^{10}.5}{2^{11}.3^{11}.\left(2.3-1\right)}\)

\(=\frac{2^{12}.3^{10}.\left(1+5\right)}{2^{11}.3^{11}.5}\)

\(=\frac{2.6}{3.5}=\frac{4}{5}\)

\(\frac{4^6.9^5+6^9.120}{8^4.3^{12}-6^{11}}\)

\(=\frac{2^{12}.3^{10}+2^9.3^9.2^3.3.5}{2^{12}.3^{12}-6^{11}}\)

\(=\frac{2^{12}.3^{10}+2^{12}.3^{10}.5}{6^{12}-6^{11}}\)

\(=\frac{2^{12}.3^{10}\left(1+5\right)}{6^{11}.6-6^{11}}\)

\(=\frac{\left(2.3\right)^{10}.2^2.6}{6^{11}\left(6-1\right)}\)

\(=\frac{6^{10}.6.2^2}{6^{11}.5}=\frac{6^{11}.2^2}{6^{11}.5}=\frac{2^2}{5}=\frac{4}{5}\)