Question

6. Viết các tích sau đây dưới dạng lũy thừa:

a/10³ x 10⁵ x 100;

b/ 15³ x 625.

Answer 1

\(a,=10^3.10^5.10^2\\ =10^{3+5+2}\\ =10^{10}\\ b,=3^3.5^3.5^4\\ =3^3.5^{3+4}\\ =3^3.5^7\)

Answer 2

`(a):`

`10^{3}xx10^{5}xx100`

`=10^{3}xx10^{5}xx10^{2}`

`=10^{3+5+2}`

`=10^{10}`

`(b):`

`15^{3}xx625`

`=(5xx3)^{3}xx(5xx5)^{2}`

`=5^{3}xx3^{3}xx5^{2}xx5^{2}`

`=5^{3+2+2}xx3^{3}`

`=5^{7}xx3^{3}`