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ko ghi lại đề
\(=5^2.\left(5^3\right)^3.\left(5^4\right)^6\)
\(=5^2.5^9.5^{24}\)
\(=5^{35}\)
![](https://rs.olm.vn/images/avt/0.png?1311)
a, 8 2 . 32 4 = 2 3 2 . 2 5 4 = 2 3 . 2 . 2 5 . 4 = 2 6 . 2 20 = 2 6 + 20 = 2 26
b, 27 4 . 9 3 . 243 = 3 3 4 . 3 2 3 . 3 5 = 3 3 . 4 . 3 2 . 3 . 3 5 = 3 12 . 3 6 . 3 5 = 3 12 + 6 + 5 = 3 23
c, 13 2 - 12 2 = 169 - 144 = 25 = 5 2
d, 6 2 + 8 2 = 36 + 64 = 100 = 10 2
e, 5 3 + 5 4 + 125 2 . 5 3 = 5 3 + 5 4 + 5 3 . 2 . 5 3 = 5 3 + 5 4 + 5 6 . 5 3 = 5 3 . 1 + 5 + 5 3 . 5 3 = 5 6 . 131
f, 1 3 + 2 3 + 3 3 + 4 3 + 5 3 = 1 + 8 + 27 + 64 + 125 = 225 = 15 2
![](https://rs.olm.vn/images/avt/0.png?1311)
1.
a) \(3^4\times3^5\times3^6=3^{4+5+6}=3^{15}\)
b) \(5^2\times5^4\times5^5\times25=5^2\times5^4\times5^5\times5^2=5^{2+4+5+2}=5^{13}\)
c) \(10^8\div10^3=10^{8-3}=10^5\)
d) \(a^7\div a^2=a^{7-2}=a^5\)
2.
\(987=900+80+7\\ =9\times100+8\times10+7\\ =9\times10^2+8\times10^1+7\times10^0\)
\(2021=2000+20+1\\ =2\times1000+2\times10+1\times1\\ =2\times10^3+2\times10^1+1\times10^0\)
\(abcde=a\times10000+b\times1000+c\times100+d\times10+e\times1\\ =a\times10^4+b\times10^3+c\times10^2+d\times10^1+e\times10^0\)
![](https://rs.olm.vn/images/avt/0.png?1311)
a, 4 5 : 4 = 4 4
b, 2 10 : 2 3 = 2 7
c, x 9 : x 3 = x 6 x ≠ 0
d, 5 103 : 5 3 = 5 100
![](https://rs.olm.vn/images/avt/0.png?1311)
Bài 1:
Sửa đề: \(4.4.16.2^4=16.16.16=16^3\)
\(6.6.2.3.6=6.6.6.6=6^4\)
Bài 2:
\(9^2.27.3^5=\left(3^2\right)^2.3^3.3^5=3^4.3^3.3^5=3^{12}\)
Sửa đề: \(2^6.b^3.b^2.b=2^6.b^6=\left(2b\right)^6\)
\(100^2.10^5.1000=\left(10^2\right)^2.10^5.10^3=10^4.10^5.10^3=10^{12}\)
Bài 3:
\(3^2.4^3-3^2+333=9.64-9+333=900\)
\(2^5.5^2-3^2-100=32.25-9-100=800-9-100=691\)
\(5^3+6^3+59=125+216+59=400\)
b1;viết cách tích sau dưới dạng lũy thừa
4.4.16.24= 4.4.4.4.4.6=45.6
6.6.2.3.6=6.6.6.6=64
b2;viết kết quả dưới dạng lũy thừa
92. 27 .35= 9.9.9.9.9.9 = 96
25.b3.b2.b= 25 .b6
![](https://rs.olm.vn/images/avt/0.png?1311)
a) 3 . 9 . 27 . 81 = 3 . 32 . 33 . 34 = 310
b) 6 . 62 . 63 . 64 = 610
c) 125 . 625 . 5 = 53 . 54 . 5 = 58
Hk tốt
a) 3 . 9 . 27 . 81
= 3 . 32 . 33 . 34
= 310
b) 6 . 62 . 63 . 64
= 610
c) 125 . 625 . 5
= 53 . 54 . 5
= 58
Học tốt nhé bạn !
![](https://rs.olm.vn/images/avt/0.png?1311)
\(a,2^2=4,2^3=8,2^4=16,2^5=32,2^6=64,2^7=128,2^8=256,2^9=512,2^{10}=1024\)
\(b,3^2=9,3^3=27,3^4=81,3^5=243\)
\(c,4^2=16,4^3=64,4^4=256\)
\(d,5^2=25,5^3=125,5^4=625\)
a) am : an = am-n
b) 12018 : 12015 = 12018-2015 = 13
c) 25 : 25 = 25-5 = 20
B) 273 : 33 = 19683 : 27 = 729
153 : 53 = 3375 : 125 = 27
A
a)\(a^m:a^n=a^{m-n}\)
b)\(1^{2018}:1^{2015}=1\)( cái này dễ mà cũng phải hỏi )
c)\(2^5:2^5=2^0=1\)