Đáp án+Giải thích các bước giải:
`1)(6^6-3^3 .6^3+3^6)/(-52)`
`=(2^6 .3^6-3^3 .3^3 .2^3+3^6)/(-52)`
`=(2^6 .3^6-3^6 .2^3+3^6)/(-52)`
`={3^6.(2^6-2^3+1)}/(-52)`
`=(3^6 .57)/(-52)`
`=(729.57)/(-52)`
`=(-41553)/52`
`2){8^{20}+4^{20}}/{4^{25}+64^5}`
`=(2^{60}+2^{40})/(2^{50}+2^{30})`
`={2^{40}(2^{20}+1)}/{2^{30}(2^20+1)}`
`=2^{10}`
`=1024`
`3)(70^{20})/(35^{20})`
`=(2^{20} .35^{20})/(35^{20}`
`=2^20`
`=1048576`
`4) {0,8^{10}}/{0,4^{10})`
`=(0,8/0,4)^{10}`
`=2^{10}`
`=1024`
`5)(2^{14} .9^8)/(6^{10} .8^3)`
`=(2^{14} .3^{16})/(2^{10} .3^{10} .2^9)`
`=(2^{14} .3^{16})/(2^{19} .3^{10})`
`=3^6/2^5`
`=729/32`
Chúc bạn học tốt!!!
`#Rùa~ ~ ~`
