1、(1) 3(x1)2(2 x1)12 (2) 5(x8)5 6(2 x7)(3) (4) 3(y 7)294(2 y)22)1(2)()1(3)( kk(5)(6)758x 231yy(7)(8)4536y 3.15.02.4x(9) 2(x2)5( x9)2( x2) (10)1)(532x(11) 15 x10 x1032 (12) 14703521xx(13)(14)2105.)(3.6.03xx yy52412(15)(16)14261032xx 3.0225.098xx(17) (18) 14653yx 25462yxyx(19) (20) 17326yx 572316yx(21)
2、(22) y5-1243x 124yx(23) (24) 10342563yx 5)43()52(31yx(25) (26)1523yx 52837xy(27) (28) 217xy 3218xy(29) (30) 6)3(24yx 17543yx(31) (32) 65312x4326x(33) (34) 43216x10(4)8xx(35) (36) 21x211x(37) (38) 2105364xx2105364xx(39) (40) 81263xx1.8.350.42xx(41)(42) 01,2x 315()46xx(43) (44) 3(1)592x 543(1)2x(45) (46) 2184x 42(31)x(47) (48) 3(2)41x 12354x(49) (50) 123()(2)6x 23140x