giải giúp mik voi ạaa

`a, (45^10 . 5^10)/(75^10)`

`= ((45.5)^10)/(75^10)`

`=(225^10)/(75^10)`

`= (75^10 . 3^10)/(75^10)`

`= 3^10`

`b, (2^17. 9^4)/(6^3. 8^3)`

`= (2^12 .2^5. 3^8)/(48^3)`

`= (2^12. 2^5. 3^3. 3^5)/(2^12. 3^3)`

`=2^5 .3^5`

`=6^5`

`c, (8^10+ 4^10)/(8^4+ 4^11)`

`= (2^10. 4^10 +4^10)/(2^4. 4^4+ 4^4. 4^7)`

`= (4^10. (2^10+1))/(4^4. (2^4+ 4^7))`

`=(2^20. (2^10+1))/(2^8. (2^4+ 2^14)`

`= (2^12. (2^10+ 1))/(2^4+ 2^14)`

`= (2^22. 2^12)/(2^4+ 2^14)`

`= (2^8. (2^14+ 2^4))/(2^4+ 2^14)`

`=2^8`