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5.5.3.15.25.9 = 5.5.3.3.5.5.5.3.3 = 5^5.3^4
9.21.7.9.49 = 3.3.3.7.7.3.3.7.7 = 3^5.7^4
10.2.5.4.25.10 = 2.5.2.5.2.2.5.5.2.5 = 2^5.5^5
8.4.10.25 = 2.2.2.2.2.2.5.5.5 = 2^6.5^3
515:53 = 515-3 = 512
15.5.9.15.625.81
= 3.5.5.3.3.3.5.5.5.5.5.3.3.3.3 = 3^8.5^6
18.42.7.9.49 = 2.3.3.2.3.7.7.3.3.7.7 =2^2.3^5.7^4
121.2.125.4.25.11
= 11.11.2.5.5.5.2.2.5.5.11 = 11^3.2^3.5^5
36.4.15.75 = 2.3.2.3.2.2.3.5.5.5.3
= 2^4.3^4.5^3
3^7.5^18.15^6 = 3^7.5^18. 3^6.5^6 = 3^13.5^24
Viết lại đề:
a)\(5.5.4.15.25.9\)
b)\(9.21.7.3.49\)
c)\(3^7.5^{18}:15^6\)
d)\(2.4.8.16.32.64...3^9\)
e)\(3.27.243...3^9\)
Bài 2:
a)\(5^x+3< 5^6\)
b)\(\left(3^2\right)^2+2^{x=5}.\left(5+2^2.3\right)\)
Mik chỉ ghi lại đề cho mn dễ giải thui chứ tui lười giải :D
\(7\cdot7\cdot7\cdot7=7^4\)
\(2\cdot2\cdot5\cdot2\cdot2=\left(2\cdot2\cdot2\right)\cdot\left(5\cdot5\right)=2^3\cdot5^2\)
\(3\cdot5\cdot15\cdot15=3\cdot5\cdot5\cdot3\cdot3\cdot5=\left(3\cdot3\cdot3\right)\cdot\left(5\cdot5\cdot5\right)=3^3\cdot5^3\)
\(1000\cdot10\cdot10=10\cdot10\cdot10\cdot10\cdot10=10^5\)
a. 73
b. 7.35.7.25 = 7 . 5 . 7 . 7 . 5 . 5 = 73 . 53
c. 2.3.8.12.24 = 2.3.2.2.2.2.2.3.2.2.2.3 = 29 . 33
d. 12.12.2.12.6 = 3.2.2.3.2.2.2.3.2.2.2.3 = 34 . 29
e. 25.5.4.2.10 = 5.5.5.2.2.2.5.2 = 54 . 24
f. 2.10.10.3.5.10 = 2.2.5.2.5.3.5.2.5 = 24 . 54 . 3
g. a.a.a+b.b.b.b = a3 + b3
h. x.x.y.y.x.y.x = x4 . y3
a.\(7^3\)
b.\(7^3\cdot5^3\)
c.\(2^9\cdot3^3\)
d.\(2^8\cdot3^4\)
e.\(2^4\cdot5^4\)
f.\(2^4\cdot3\cdot5^4\)
g.\(a^3+b^4\)
h.\(x^4\cdot y^3\)
a)5.5.5.5.5.5=56
b)6.6.6.3.2=6.6.6.6=64
c)2.2.2.3.3=6.6.2=62.2
d)100.10.10.10=10.10.10.10.10=105
a) 56
b) 23. 32
c) 6.6.6.3.2=6.6.6.6=64
d)100.10.10.10=10.10.10.10.10=105
a) 5 . 5 . 5 . 5 . 5 . 5 . 5 = 56
b) 6 . 6 . 6 . 3 . 2 = 63 . 61
c) 2.2.2.3.3 = 23 . 32
d) 100 . 10 . 10 . 10 = 102 . 103
a/ \(8.4.10.25=2^3.2^2.2.5.5^2=2^6.5^3\)
b/ \(5^{15}.5^3=5^{18}\)
c/ \(18.42.7.9.49=3.6.6.7.7.3^2.7^2=3^3.6^2.7^4\)
d/ \(2.4.8.16...........2^{10}=2^1.2^2.2^3.....2^{10}=2^{\left(1+2+3+...+10\right)}=2^{\left(10+1\right).10:2}=2^{55}\)
bài bạn giải đúng không vậy