a) 15⁸ x 9⁴

= 15⁸ x ( 3² )⁴

= 15⁸ x 3⁸

= ( 15 x 3 )⁸ = 45⁸

b) 4⁹ : 5²⁷

= 4⁹ : ( 5³ ) ⁹

= 4⁹ : 125⁹

= \(\left(\frac{4}{125}\right)^9\)

c) 20¹⁰ : 2²⁰

= 20¹⁰ : ( 2² )¹⁰

= 20¹⁰ : 4¹⁰ = ( 20 : 4 ) ¹⁰ = 5¹⁰

d) 27⁵ : ( -7 ) ¹⁵

= 27⁵ : [ ( - 7 )³ ]⁵

= 27⁵ : ( - 21 )⁵

= \(\left(\frac{27}{-21}\right)^5=\left(\frac{9}{-7}\right)^5\)

Cbht

4².8³ = (2²)².(2³)³ = 2⁴.2⁹ = 2¹³

9³.27² = (3²)³.(3³)² = 3⁶.3⁶ = 3¹²

8².25³ = (2³)².(5²)³ = 2⁶.5⁶ = (2.5)⁶ = 10⁶

a ) 4² . 8³ = ( 2² ) ² . ( 2³ ) ³ = 2^2.2 . 2^3.3 = 2⁴ . 2⁹ = 2⁴⁺⁹ = 2¹³

b ) 9³ . 27² = ( 3² ) ³ . ( 3³ ) ² = 3^2.3 . 3^3.2 = 3⁶ . 3⁶ = 3⁶⁺⁶ = 3¹²

4² . 8³ = ( 2² ) ² . ( 2³ ) ³

      = 2⁴ . 2⁹

       = 2¹³

9³ . 27² = ( 3² ) ³ . ( 3³ ) ²

            = 3⁶ . 3⁶

              = 3¹²

8^{2 .} 25³ = ( 2³ ) ² . ( 5² ) ³

           = 2⁶ . 5⁶

          = ( 2 . 5 ) ⁶

          = 10⁶

a: \(A=\left(2^3\right)^2\cdot\left(2^5\right)^4=2^6\cdot2^{20}=2^{26}\)

b: \(=\left(3^3\right)^3\cdot\left(3^2\right)^4\cdot3^5=3^9\cdot3^8\cdot3^5=3^{22}\)

\(A=8^2.32^4=\left(2^3\right)^2.\left(2^5\right)^4=2^6.2^{20}=2^{26}\)

\(B=27^3.9^4.243=\left(3^3\right)^3.\left(3^2\right)^4.3^5=3^9.3^8.3^5=3^{22}\)

a)10⁸.2⁸=(10.2)⁸=20⁸

b)10⁸:2⁸=(10:2)⁸=5⁸

c)25⁴.2⁸=(5²)⁴.2⁸=5^2.4.2⁸=5⁸.2⁸=(5.2)⁸=10⁸

a. 10 mũ 8 . 2 mũ 8 = 10 . 2 mũ 8 = 20 mũ 8

b. 10 mũ 8 : 2 mũ 8 = 10 : 2 mũ 8 = 5 mũ 8

c . 25 mũ 4 . 2 mũ 8 = 390625 . 64 = 25000000

Rickroll

a) \(\left(\frac{1}{16}\right)^{25}\div\left(\frac{1}{2}\right)^{30}=\left(\frac{1}{2^4}\right)^{25}\div\left(\frac{1}{2}\right)^{30}=\left[\left(\frac{1}{2}\right)^4\right]^{25}\div\left(\frac{1}{2}\right)^{30}=\left(\frac{1}{2}\right)^{4.25}\div\left(\frac{1}{2}\right)^{30}\)

\(=\left(\frac{1}{2}\right)^{100}\div\left(\frac{1}{2}\right)^{30}=\left(\frac{1}{2}\right)^{100-30}=\left(\frac{1}{2}\right)^{70}\)

b) \(584^{100}\div292^{100}=\left(584-292\right)^{100}=292^{100}\)

c) \(125^4\cdot16^3=\left(5^3\right)^4\cdot\left(2^4\right)^3=5^{3\cdot4}\cdot2^{4\cdot3}=5^{12}\cdot2^{12}=\left(5+2\right)^{12}=7^{12}\)

$a,$

$2^{20}.15+2^{10}.85$

$=2^{20}.2^{10}.85+15$

$=2^{30}.100$

$=2^{30}{.10}^2$    

$b,$

${27}^{16}:9^{10}$

$=(3^3{)}^{16}:(3^2{)}^{1}0$

$=3^{48}:3^{20}$

$=3^{28}$ 

$c,$ 

${125}^3:{25}^4$

$=(5^3{)}^5:(5^2{)}^4$

$=5^{15}:5^8$

$=5^7$

$d,$

${24}^4:3^4-{32}^{12}:{16}^{12}$

$=(24:3{)}^4-(32:16{)}^{12}$

$=8^4-2^{12}$

$=(2^3{)}^4-2^{12}$

$=2^{12}-2^{12}$ 

a: ${}^{}\cdot {}^{}={}^{}={}^{}$

b: 64⋅83=24⋅34⋅29=213⋅3464⋅83=24⋅34⋅29=213⋅34

c: $16\cdot 81={}^{}$

d: ${}^{}\cdot {}^{}={}^{}$

Có tính k bạn

a, \(8^4.16^5\)

b, \(5^{40}.125^2.25^3\)

c,\(27^4.81^{10}\)

d, \(10^3.100^5.1000^4\)

Bạn ơi mình hỏi là viết các tích của số đó chứ ko phải là ghi ra như vậy

8⁴.16⁵=2¹².2²⁰=2³²

5⁴⁰.125².25³=5⁴⁰.5⁶.5⁶=5⁵²

27⁴.81¹⁰=3¹².3⁴⁰=3⁵²

10³.100⁵.1000⁴=10³.10¹⁰.10¹²=10²⁵

^{Cần chi tiết hơn không?}