Question

[Ngô Chi Lan]

4 mũ 10 x 8 mũ 15

4 mũ 15 x 5 mũ 30

27 mũ 16 : 9 mũ 10 

Ai làm đúng trc mk tk cho!!!

Answer 1

[Tiểu Đào]

\(4^{10}\times8^{15}\)

\(=\left(2^2\right)^{10}\times\left(2^3\right)^{15}\)

\(=2^{20}\times2^{45}\)

\(=2^{65}\)

\(4^{15}\times5^{30}\)

\(=\left(2^2\right)^{15}\times5^{30}\)

\(=2^{30}\times5^{30}\)

\(=\left(2\times5\right)^{30}\)

\(=10^{30}\)

\(27^{16}\div9^{10}\)

\(=\left(3^3\right)^{16}\div\left(3^2\right)^{10}\)

\(=3^{48}\div3^{20}\)

\(=3^{28}\)

Answer 2

[Băng Dii~]

4^10 . 8^15

= (2^2)^10 . (2^3)^15

= 2^20 . 2^45

= 2^20 + 45

= 2^65

4^15 . 5^30

= (2^2)^15 . 5^30

= 2^30 . 5^30

= 10^30

27^16 : 9^10

= (3^3)^16 : (3^2)^10

= 3^48 : 3^20

= 3^48 - 20

= 3^28