[130-3(5.2⁴-5².2)]:2³

=[130-3(5.16-25.2)]:8

=[130-3.(80-50)]:8

=[130-3.30]:8

=[130-90]:8

=40:8

=5

\(2448:\left[119-\left(23-6\right)\right]\)

\(=2448:\left[119-23+6\right]\)

\(=2448:102\)

\(=24\)

\(\left[130-3\left(5.2^4-5^2.2\right)\right]:2^3\)

\(=\left[130-3\left(5.16-25.2\right)\right]:8\)

\(=\left[130-3\left(80-50\right)\right]:8\)

\(=\left[130-3.30\right]:8\)

\(=\left[130-90\right]:8\)

\(=40:8=5\)

\(5^3.52+5^3.7^2-5^3\)

\(=5^3.52+5^3.49-5^3\)

\(=5^3\left(52+49-1\right)\)

\(=5^3.100\)

\(=125.100=12500\)

\(2^3.16-2^3.14+56\)

\(=2^3.16-2^3.14+2^3.7\)

\(=2^3\left(16-14+7\right)\)

\(=2^3.9\)

\(=8.9=72\)

Dấu chia hay dấu ; đấy?

\(=\dfrac{5\cdot2^{30}\cdot3^{18}-2^{29}\cdot3^{20}}{5\cdot2^{28}\cdot3^{19}-7\cdot2^{29}\cdot3^{18}}\)

\(=\dfrac{2^{29}\cdot3^{18}\left(5\cdot2-9\right)}{2^{28}\cdot3^{18}\left(5\cdot3-7\cdot2\right)}=2\)

=2 

 bạn bấm máy tính hoặc tính theo kiểu rút gọn cũng ra

Đây là bài đội tuyển bạn ơi

\(\dfrac{5.2^{30}.3^{18}-2^2.3^{20}.2^{27}}{5.2^9.2^{19}.3^{19}-7.2^{29}.3^{18}}=\dfrac{5.2^{30}.3^{18}-2^{29}.3^{20}}{2^{28}.3^{19}.5-7.2^{29}.3^{18}}=\dfrac{2^{29}.3^{18}\left(5.3+3^2\right)}{2^{28}.3^{18}\left(3.5+7.2\right)}=\dfrac{2.24}{29}=\dfrac{48}{29}\)