6 mũ 0

con thứ 2 mình chịu

9 mũ 0

.,mhvj

12⁷ : 6⁷ = ( 12:6)⁷ = 2⁷ 

27⁵ : 81³ = ( 3³)⁵ : ( 3⁴)³ = 3¹⁵ : 3¹² = 3^15-12 = 3³ 

18³ : 9³ = ( 18:9)³= 2³

125³: 25⁴= ( 5³)³: ( 5²)⁴= 5⁹ : 5⁸ = 5^9-8 = 5 

a) \(12^7:6^7=\left(12:6\right)^7=2^7\)

b) \(27^5:81^3=\left(3^3\right)^5:\left(3^4\right)^3=3^{15}:3^{12}=3^3=27\)

c) \(18^3:9^3=\left(18:9\right)^3=2^3=8\)

d) \(125^3:25^4=\left(5^3\right)^3:\left(5^2\right)^4=5^9:5^8=5\)

a, 12⁷ : 6⁷ = (12 : 6)⁷ = 2⁷ = 128.

b,27⁵ : 81³ = (3³)⁵ : (3⁴)³ = 3¹⁵ : 3¹² = 3^{15 - 12} = 3³ = 27

c,18³ : 9³ = (18 : 9)³ = 2³ = 8.

d, 125³ : 25⁴ = (5³)³ : (5²)⁴ = 5⁹ : 5⁸ = 5^{9 - 8} = 5.

1. \(12^7:6^7=\left(6.2\right)^7:6^7=6^7.2^7:6^7=2^7\)

2.\(18^3:9^3=\left(9.2\right)^3:9^3=9^3.2^3:9^3=2^3\)

3.\(27^5:81^3=\left(3^3\right)^5:\left(3^4\right)^3=3^{15}:3^{12}=3^3\)

4.\(125^5:25^4=\left(25^2\right)^5:25^4=25^{10}:25^4=25^6\)

Học tốt nha bạn!

a, 12⁷ : 6⁷ = (12 : 6)⁷ = 3⁷
b, 18³ : 9³ = (18 : 9)³ = 2³
c, 27⁵ : 81³ = (3³)⁵ : (3⁴)³ = 3¹⁵ : 3¹² = 3³
d, 125³ : 25⁴ = (5³)³ : (5²)⁴ = 5⁹ : 5⁸ = 5
@Ribi Shchi

12⁷:6⁷=128

18³:9³=8

27⁵:81³⁼²⁷

125³:25⁴=5

Tick mk nhé

a) 2^7 . 9^3 / 6^5 . 8^2

= 2^7 . 3^9 / 2^5 . 3^5 . 2^6

= 2^-4 . 3^4

a.\(12^7:6^7=\left(12:6\right)^7=2^7\)

b. \(27^5:81^3=\left(3^3\right)^5:\left(3^4\right)^3=3^{15}:3^{12}=3^3\)

c. \(18^3:9^3=\left(18:9\right)^3=2^3\)

d. \(125^3:25^4=\left(25^3\right)^3:25^4=25^9:25^4=25^5\)

12^7:6^7=(12:6)^7=2^7

27^5:81^3=(3^3)^5:(3^4)^3=3^15:3^12=3^3

18^3:9^3=(18:9)^3=2^3

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

a, 4¹⁰. 2³⁰=2²⁰.2³⁰=2⁵⁰

b,9²⁵.27⁴.81³= 3⁵⁰.3¹².3¹²=3⁷⁴

Tương tự các câu khác....

a, 4¹⁰.2³⁰ = (2²)¹⁰.2³⁰ = 2²⁰.2³⁰ = 2⁵⁰
b, 9²⁵.27⁴.81³ = (3²)²⁵.(3³)⁴.(3⁴)³ = 3⁵⁰.3¹².3¹² = 3⁷⁴
c, 25⁵⁰.125⁵ = (5²)⁵⁰.(5³)⁵ = 5¹⁰⁰.5¹⁵ = 5¹¹⁵
d, 64³.4⁸.16⁴ = (2⁶)³.(2²)⁸.(2⁴)⁴ = 2¹⁸.2¹⁶.2¹⁶ = 2⁵⁰
e, 3⁸ : 3⁶ = 3²
2¹⁰ : 8³ = 2¹⁰ : (2³)³ = 2¹⁰ : 2⁹ = 2
12⁷ : 6⁷ = (12 : 6)⁷ = 2⁷
@Dương Tuyết Mai

Tách từng câu ra giùm, như này ai giải nổi:)))))