Giải:

a) \(4^2.8^5=\left(2^2\right)^2.\left(2^3\right)^5=2^4.2^{15}=2^{19}\)

b) \(27^3.9^4=\left(3^3\right)^3.\left(3^2\right)^4=3^9.3^8=3^{17}\)

c) \(64^3.16^7=\left(4^3\right)^3.\left(4^2\right)^7=4^9.4^{14}=4^{23}\)

5^13: 5⁷ = 5 ^13-7=5^6=15625

a⁹.a.a⁵=a⁹⁺¹⁺⁵=a¹⁵

Trả lời :

5¹³ : 5⁷ = 5^13-7 = 5⁶

a⁹ . a . a⁵ = a⁹⁺¹⁺⁵ = a¹⁵

~~Học tốt~~

\(5^{13}:5^7=5^{13-7}=5^6\)

\(a^9\cdot a\cdot a^5=a^{9+1+5}=a^{15}\)

(ab) x (ab)²

= (ab)¹ x (ab)²

= (ab)¹⁺²

=(ab)³

hok tốt..........

ab . (ab)² = (ab)²⁺¹ = (ab)³

(ab)³

= a*3 đó bạn

a^3

mk cũng ko biết có đúng ko

a^4:a=a^3 k mình

​

\(9^5:3^7=\left(3^2\right)^5:3^7=3^{10}:3^7=3^3\)

\(8^6:4^8=\left(2^3\right)^6:\left(2^2\right)^8=2^{18}:2^{16}=2^2\)

\(25^7:125^3=\left(5^2\right)^7:\left(5^3\right)^3=5^{14}:5^9=5^5\)

Chúc bạn học tốt !

a) 11^5

b) 17^2 

c) 4^2 

d) a^4 

a) 15³ : 15 = 15²

b) 2⁵ : 2² = 2³

c) 3⁷ : 3² = 3⁵

d) 7³ : 7 = 7²

Ủng hộ mk nha ^_-

a) \(15^3:15=15^{3-1}=15^2=225\)

b) \(2^5:2^2=2^{5-2}=2^3=8\)

c) \(3^7:3^2=3^{7-2}=3^5=243\)

d) \(7^3:7=7^{3-1}=7^2=49\)

nha m.n. Thanks

a) 15³ : 15 = 15²

b) 2⁵ : 2² = 2³

c) 3⁷ : 3² = 3⁵

d) 7³ : 7 = 7²

+) \(2\times4\times8\times32\times64\)

\(=2\times2^2\times2^3\times2^5\times2^6\)

\(=2^{1+2+3+5+6}\)

\(=2^{17}\)

+) \(3\times9\times27\times81\times729\)

\(=3\times3^2\times3^3\times3^4\times3^6\)

\(=3^{1+2+3+4+6}\)

\(=3^{16}\)

_Chúc bạn học tốt_