a) 16^5

b)18^6

mk chỉ giải đc thế thui

các bạn oi 16 mũ 6 : 4 mũ 2 viết dưới dạng lũy thừa bằng bao nhiêu thế

a)  \(\frac{6}{5}.{\left( {1,2} \right)^8} = 1,2.{(1,2)^8} = {(1,2)^{1 + 8}} = {(1,2)^9}\)

b) \({\left( {\frac{{ - 4}}{9}} \right)^7}:\frac{{16}}{{81}} = {\left( {\frac{{ - 4}}{9}} \right)^7}:{\left( {\frac{{ - 4}}{9}} \right)^2} = {\left( {\frac{{ - 4}}{9}} \right)^{7 - 2}} = {\left( {\frac{{ - 4}}{9}} \right)^5}\)

a) $125^3:25^4=(5^3)^3:(5^2)^4=5^9:5^8=5^1$

$16^4:4^2=(4^2)^4:4^2=4^8:4^2=4^6$

$27^8:9^4=(3^3)^8:(3^2)^4=3^{24}:3^8=3^{16}$

$125^5:25^3=(5^3)^5:(5^2)^3=5^{15}:5^6=5^9$

$4^{14}:5^{28}=(2^2)^{14}:5^{28}=2^{28}:5^{28}=(\dfrac{2}{5})^{28}$

b) $12^n:2^{2n}=12^n:(2^2)^n=12^n:4^n=3^n$

$64^4.16^5.4^{20}=(4^3)^4.(4^2)^5.4^{20}=4^{12}.4^{10}.4^{20}=4^{42}$

a) \(125^7:25^4=\left(5^3\right)^7:\left(5^2\right)^4=5^{21}:5^8=5^{13}\)

b) \(27^8:9^5=\left(3^3\right)^8:\left(3^2\right)^5=3^{24}:3^{10}=3^{14}\)

c) \(4^{20}:2^{30}=\left(2^2\right)^{20}:2^{30}=2^{40}:2^{30}=2^{10}\)

d) \(28^n:2^n=28^n:4^n=7^n\)

e) \(64^5.16^6:4^{20}=2^{30}.2^{24}:2^{10}=2^{54}:2^{40}=2^{14}\)

f)  \(32^4:8^6=2^{20}:2^{18}=2^2\)

\(a.125^7:25^4=5^{21}:5^8=5^{13}\)

\(b.27^8:9^5=3^{24}:3^{10}=3^{14}\)

\(c.4^{20}:2^{30}=2^{40}:2^{30}=2^{10}\)

\(d.28^n:2^{2n}=28^n:4^n=7n\)

\(\hept{\begin{cases}e.64^5.16^6:4^{20}=4^{15}.4^{12}:4^{20}=4^7\\f.32^4:8^6=2^{20}:2^{18}=2^2\end{cases}}\)

nhiều thê

sbn gủi từng câu

một thôi thì

trả lời dễ hơn đó

thôi kệ mình lỡ rồi bạn giúp mình nhé

\(a,3^7.27^5.81^3\\ =3^7.\left(3^3\right)^5.\left(3^4\right)^3\\ =3^7.3^{15}.3^{12}\\ =3^{34}\\ b,100^6.1000^5.10000^4\\ =100^6.100^{10}.100^{12}\\ =100^{28}\\ c,125^4:5^8\\ =5^{12}:5^8\\ =5^4.\)

\(a,=5^{40}\cdot5^{12}=5^{52}\\ b,=x^{7+4+3}=x^{14}\\ c,=\left(3\cdot4\right)^6=12^6\)

a) \(25^{20}.125^4=\left(5^2\right)^{20}.\left(5^3\right)^4=5^{40}.5^{12}=5^{40+12}=5^{52}\)

b) \(x^7.x^4.x^3=x^{7+4+3}=x^{14}\)

c) \(3^6.4^6=\left(3.4\right)^6=12^6\)

viết các tích sau dưới dạng 1 luỹ thừa:

a(    25^20 . 125^4 = (5²)²⁰ . (5³)⁴ = 5⁴⁰ . 5¹² = 5⁵²

b(     x^7 . x^4 . x^3 = x⁷⁺⁴⁺³ = x¹⁴

c(     3^6 . 4^6 = (3.4)⁶=12^6
??

\(a,125^5:25^3=\left(5^3\right)^5:\left(5^2\right)^3=5^{15-6}=5^9\)

\(b,27^6:9^3=\left(3^3\right)^6:\left(3^2\right)^3=3^{18-6}=3^{12}\)

\(c,4^{20}:2^{15}=\left(2^2\right)^{20}:2^{15}=2^{40-15}=2^{25}\)

\(d,24^n:2^{2n}=4^n.6^n:4^n=6^n\)

\(e,64^4.16^5:4^{20}=\left(2^6\right)^4.\left(2^4\right)^5:\left(2^2\right)^{20}=2^{24+20-40}=2^4=16\)