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- 22.32.5:22.3-32=3.5-32=15-9=6
- 2.52-22.32:32=2.(52-2)=2.(25-2)=46
3. 33.19-33.12=33.(19-12)=33.7=189
4. 3.52-16:22=3.52-24:22=3.25-4=75-4=71
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1. 53 = 5.5.5 = 125
2. 27 = 2.2.2.2.2.2.2 = 128
3. 44 = 4.4.4.4 = 256
4. 73 = 7.7.7 = 343
6. 35 = 243
7. 26 = 64
8. 34 = 81
9. 83 = 512
11. 132 = 169
12. 112 = 121
13. 142 = 196
14. 152 = 225
16. 172 = 289
17. 182 = 324
18. 192 = 361
19. 202 = 400
21. 104 = 10000
22. 105 = 100000
23. 106 = 1000000
24. 107 = 10000000
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các bạn có thể giải chi tiết cho mình được ko . Mình cần ghấp lắm
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Bài 1:
2\(x\) = 4
2\(^x\) = 22
\(x=2\)
Vậy \(x=2\)
Bài 2:
2\(^x\) = 8
2\(^x\) = 23
\(x=3\)
Vậy \(x=3\)
![](https://rs.olm.vn/images/avt/0.png?1311)
a)\(\frac{3^{10}.\left(-5\right)^{21}}{\left(-5\right)^{20}.3^{12}}=\frac{-5}{9}\)
b)\(\frac{\left(-11\right)^5.13^7}{11^5.13^8}=-\frac{1}{13}\)
c)\(\frac{2^{10}.3^{10}-2^{10}.3^9}{2^9.3^{10}}=\frac{2^{10}.3^9\left(3-1\right)}{2^9.3^{10}}=2\)
d(\(\frac{5^{11}.7^{12}+5^{11}.7^{11}}{5^{12}.7^{12}+9.5^{11}.7^{11}}=\frac{5^{11}.7^{11}\left(7+1\right)}{5^{11}.7^{11}\left(35+9\right)}=\frac{1}{6}\)
![](https://rs.olm.vn/images/avt/0.png?1311)
\(a,\)\(\frac{2^5\times3^{12}\times7^8}{2^7\times3^{10}\times7^9}=\frac{3^2\times\left(2^5\times3^{10}\times7^8\right)}{2^2\times7\times\left(2^5\times3^{10}\times7^8\right)}\)\(=\frac{3^2}{2^2\times7}=\frac{9}{28}\)
\(b,\)Tương tự
\(a,\left(3^2\cdot5^2\cdot4^3\right):\left(8\cdot3^2\right)\)
\(=\frac{3^2\cdot5^2\cdot4^3}{8\cdot3^2}\)
\(=\frac{3^2\cdot5^2\cdot2^6}{2^3\cdot3^2}\)
\(=5^2\cdot2^3\)
\(=25\cdot8=200\)
\(b,\left(2^{10}\cdot13+2^9\cdot130\right):\left(2^8\cdot104\right)\)
\(=\frac{2^{10}\cdot13+2^9\cdot130}{2^8\cdot104}\)
\(=\frac{2^9\cdot\left(2\cdot13+130\right)}{2^8\cdot2^3\cdot13}\)
\(=\frac{2^9\cdot156}{2^{11}\cdot13}\)
\(=\frac{2^9\cdot2^3\cdot3\cdot13}{2^{11}\cdot13}\)
\(=\frac{2^{12}\cdot3\cdot13}{2^{11}\cdot13}\)
\(=2.3=6\)
a 200 nhe