Đáp án:
Giải thích các bước giải:
(-0,3)^7 .2^8 /0,6^7
=-1.2^8 /2^7
=-1.2 =-2
3^7 .16³ /12^5 .27²
=3^7 .(4²)³ /3^5 . 4^5 .(3³)²
=3^7 .4^6 /3^5 .4^5 .3^6
=4 /3^4
=4/81
2³ .(0,5)³ .3^7 /2. (0,5)^4 .3^8
=(2.0,5)³ .3^7 /(2 .1/16) .3^8
=1 .3^7 /1/8 .3^8
=1 /1/8 .3
=1 :3/8
=1 .8/3 =8/3