a)(2¹.2².2³....250):(2¹7)75;
c) (5¹.5³.55...599):(55.510.515...5150); e) (4¹-4²-4³4¹50):(2¹-2³-25...2251);
b) (3¹.3².3³.....380): (3¹-33³-35.-3¹11);
d) (7¹.76.7¹1.7302): (7¹.74.77.710...7154);
f) (9².94.96...980):(3¹.3².3³.350). 214 3² 316 c) (5³.58): (5³.5²)​