Question

[๛Btッ⁀ᶜᵘᵗᵉ]

tính 4¹⁵.5^{30   và}   27¹⁶:9¹⁰

Answer 1

[Nguyễn Phạm Hồng Anh]

Ta có : \(4^{15}.5^{30}=4^{15}.5^{2.15}=4^{15}.\left(5^2\right)^{15}\)

       \(=4^{15}.25^{15}=\left(4.25\right)^{15}=100^{15}\)

\(27^{16}:9^{10}=\left(3^3\right)^{16}:\left(3^2\right)^{10}\)

\(=3^{48}:3^{20}=3^{48-20}=3^{28}\)

Answer 2

[๛Ňɠũ Vị Čáէツ]

4¹⁵ . 5³⁰ 

= (2²)¹⁵ . 5³⁰ 

= 2³⁰ . 5³⁰

= ( 2.5 )³⁰

= 10³⁰ 

    27¹⁶ : 9¹⁰ 

= (3³)¹⁶ : (3²)¹⁰

= 3⁴⁸ : 3²⁰

= 3²⁸

     ~Hok tốt~

 k mik nha