64m^3-n^3
5x = 20
x^6y^3-125
(a+b)
28
150
112
10
88
289
116
80
55
160
181
75
700
550
178
86
70
60
121
78
23
40
95
85
...
395=(60/x)*(1-(1/(1+x)^10))+1000/(1+x)^10
27a^6+64b^9
fourth root of 1-i
lg3aslo3bselo3bselo3bseogbaexogbaexlo3bsexlog3basex
log3log3vbasexlog3lg3baexasxlg3ogvbselo3lg3baexasxbsebasex=...
if one of zeroes of 40xsquare -42ksquarex-9 is negative of others find k
