dễ mà nhóc :

\(5^{20}:\left(5^{15}.6+5^{15}.19\right)=5^{20}:\left[5^{15}\left(6+19\right)\right]=5^{20}:\left(5^{25}.15\right)=5^{20}:5^{25}.15=.......\)

tự lm tiếp nhé nhóc tỉ còn dj thì violymic nua

5^20 : ( 5^15 x 6 + 5^15 x 19 ) = 125

k cho mk nha

5 mũ 20 chia(5 mũ 15 nhân(6+19))=5 mũ 20 chia (5 mũ 15 nhân 25)=5 mũ 20 chia 5 mũ 17=5 mũ 3

viết cụ thể ra dc o

5^20 : (5^15.6 + 5^15.19)

=5^20 : [5^15.(6+19)]

=5^20 : (5^15.25)

=5^20 : (5^15.5^2)

=5^20:5^17

=5^3

=125

\(5^{20}:\left(5^{15}.6+5^{15}.19\right)\)

\(=5^{20}:\left[5^{15}.\left(6+19\right)\right]\)

\(=5^{20}:\left(5^{15}.25\right)\)

\(=5^{20}:\left(5^{15}.5^2\right)\)

\(=5^{20}:5^{15+2}\)

\(=5^{20}:5^{17}\)

\(=5^{20-17}\)

\(=5^3\)

\(=125\)

\(5^{20}:\left(5^{15}\cdot6+5^{15}\cdot19\right)\)

= \(5^{20}:5^{15}\cdot6+5^{20}:5^{15}\cdot19\)

= \(5^5\cdot6+5^5\cdot19\)

= \(3125\cdot6+3125\cdot19\)

= \(18750+59375\)

= \(78125\)

5^20:(5^15.6+5^15.19)

=5^20:[5^15.(6+19)]

=5^20:(5^15.5^2)

=5^20:5^17

=5^3=125

thanks

Ta có: 5²⁰ : [5¹⁵ .(6 + 19)] 

         = 5²⁰ : (5¹⁵ . 25)

         = 5²⁰ : 5¹⁷ = 5³

Ta có: 5²⁰ : [5¹⁵ .(6 + 19)] 

         = 5²⁰ : (5¹⁵ . 25)

         = 5²⁰ : 5¹⁷ = 5³

tìm số tự nhiên a biết 35 ⋮ a và 105 ⋮ a và a > 5

125 =.=

5^20 : [ 5^15 * (6+19) ]

= 5^20 : [ 5^15 * 25 ]

= 5^20 : [5^15 * 5^2 ]

=5^20 : 5^17

=5^3 =125

5²⁰ :  ( 5¹⁵ . 6 + 5²⁵ .19 )

= 5^{20 :}  [ 5¹⁵ . ( 6 +19 ) ]

= 5²⁰ : ( 5¹⁵ . 25 )

= 5²⁰ : ( 5¹⁵ . 5² )

= 5²⁰   : 5¹⁷

= 5^{20 - 17}

= 5³

= 125

a) \(\dfrac{-25}{19}< \dfrac{-13}{19}< \dfrac{9}{19}< \dfrac{14}{19}< \dfrac{20}{19}< \dfrac{30}{19}< \dfrac{42}{19}\)

b) \(\dfrac{-2}{15}< \dfrac{-1}{10}< \dfrac{1}{6}< \dfrac{1}{5}< \dfrac{4}{15}< \dfrac{1}{3}< \dfrac{2}{5}\)

\(5^{20}:\left(5^{15}.6+5^{15}.19\right)\)

\(=5^{20}:\left(5^{15}.\left(6+19\right)\right)\)

\(=5^{20}:\left(5^{15}.25\right)\)

\(=5^{20}:\left(5^{15}.5^2\right)\)

\(=5^{20}:5^{17}\)

\(=5^3=125\)

5²⁰ :(5¹⁵.6+5¹⁵.19)

= 5²⁰:(5¹⁵.25)

=5²⁰:(5¹⁵.5²)

=5²⁰:5¹⁷

=5³