1、 4 4 1 3 ()()(7) 17(1)2(4) 7 7 8 1 8 ( )( ) 21(11)8(11) 9 8 9 1 (0.1)(500) (1)212 (1)2398 6 1 1 1 ()()0 9(4)3(1 2 8 8 1 1 1 ( )( ) 8(20)2(17) 2 7 6 9 6 ( )(60) (4)432 (1)1762 8 7 (-1)(-3) 18(-20) 12(-14)()() -9-3(-310) (-5)332 9 2 -1518(-9)(-21) 1.9(-7.8)(-1)6.1 2 1 1 1 7 8 ()() 4.8()(4.8) 9 4 2 5 5
2、 5 (3m3) z4(77c) 4x2(8b9z) (8xb)2(4m2c) 4 (142z)z 8(5a5bc1) (yz)(ef) 4(7ay)4(m2q) 5 2 ()()(5) 15(1)3(3) 2 1 6 ( )( ) 14(30)3(14) 3 8 5 (50) (4)252 (1)1642 7 ()0 5(2)2(5 4 5 4 1 7 7 ( ) 18(23)9(10) 5 6 8 3 1 (60) (1)432 (1)2250 4 3 (-14)(-20) 2(-18) 2(-23.5)()() 72(-208) (0)244 9 7 -317(-7)(-25) -9.2
3、(-8.4)(-2)4.8 2 1 1 3 2 9 ()() 4.3()(9.7) 7 5 9 7 5 5 (4a2) z2(45c) 12x2(8n2z) (2xn)4(6a9c) (206z)z 3(4a6mn3) (xy)(pq) 5(7ax)9(n2q) 4 2 5 6 ()()(1) 29(2)2(3) 1 1 1 ( )( ) 2(22)32 6 3 (0.3)(20) (3)343 (1)2803 4 0 20(2)3(4 7 3 2 ( ) 19(28)5(18) 6 7 6 1 4 ( )(20) (3)253 (1)1092 3 5 (-14)(-11) 4(-7) 14.
4、5(-6.5)() -14-1(-128) (-1)343 3 4 -123(-4)(-19) 6.4(-4.6)(-4.7)9.4 2 1 1 3 7 8 ()() 3.2()(6.7) 9 6 2 7 5 5 (9y7) z5(73b) 14a6(9b3c) (7ab)7(2y2b) 10 (208z)c 2(5c3ab8) 9 (yz)(pq) 3(8ay)3(n5q) 4 1 ()()(2) 28(4)2(2) 8 1 2 ( )( ) 28(24)9(20) 7 8 3 (0.8)(5) (5)223 (1)1307 9 0 22(4)3(2 6 8 5 ( ) 13(13)4(20) 5 4 3 1 5 (60) (5)423 (1)2034 6 4 (-1)(-18) 16(-7) -3.5(-5)