√<span>81=|9|; </span>√<span>64=|8|; </span>√<span>100=|10|; </span>√<span>0.16=|0,4|; </span>√<span>0.09=|0,3|; </span>√<span>0.25=|0,5|; </span>√<span>1.44=|1,2|; </span>√<span>4900=|70|; </span>√<span>6400=|80|.</span>
-3(1,8^7)^4 (0,27^13)^3/2 (1,8^9)^3 (0,27^8)^5
1,8^7=13
0,27^13=4
1,8^9=16
0,27^8=2
-3*13=-39
-39*4=-156
-156*4=-612
-612*3=-1872
-1872/2=-936
-936*16=