1、(30) (1)332 (1)1770 5 7 (7)(15) 16(7) 12(3.5) 1 1 ()() 35(209) (1)253 7 2 137(20)(17) 8.8(0.3)(0.2)2.4 2 1 1 2 2 1 ()() 9.6()(8.1) 9 6 4 5 5 5 (4a6) x6(23a) 4a7(8n9z) (8an)9(4a5a) 1 (2010x)z 3(8a5mn2) 2 (ab)(st) 3(9by)4(n4q) 7 6 5n(8n6) n(7n4z)(5z5n) 6(4b6)7b 4(7x6)(9x4) 5(ab3a)(5a3b) 4(abc5a)2(8a4a
2、bc) 8(xy5z)(xy5z) 7(pqpr)(8pqpr) 5 x 1 x 0.7x0.63.82.3x 3 8 3 4 1 6x8x 7(x2)7(x8)16 9 7 1 4 (9x8)x1 5x9(10x)8 4 5 y1 y2 6 2.5x2(x2)10 2 6 0.9x0.316.9x 4(7x4)4 6 4 ()()(7) 19(2)2(4) 8 1 4 ( )( ) 3(20)4(13) 7 8 5 (0.5)(100) (1)222 (1)2427 6 0 21(4)2(4 8 9 8 1 1 1 ( )( ) 11(14)1(19) 7 4 8 7 1 (50) (1)4
3、33 (1)1577 8 2 (19)(6) 14(1) 1(21.5)()() 94(55) (0)332 2 5 93(15)(9) 8.1(6.8)(0.3)1.1 2 1 1 4 6 1 ()() 5.2()(6.4) 5 3 4 5 5 5 (8m1) x9(72a) 8x9(8n9c) (3xn)8(3m3a) (144x)c 3(6b4ab9) 8 (ab)(ef) 3(7bx)3(n3q) 5 4 9y(6y9) 9y(3y2q)(7qy) 3(3n4)3n 4(7y10)(4y8) 2(ab3a)(6a3b) 7(abc9a)2(8a4abc) 9(xy6z)(xy5z) 3
4、(pqpr)(5pqpr) 7 x 1 x 0.3x0.42.90.9x 9 2 3 6x8x 9(x7)9(x3)12 3 9 1 2 (5x9)x6 2x6(9x)9 6 5 y2 y2 4 3x2(x5)5 3 5 0.4x0.53.51x 4(2x5)4 4 3 ()()(4) 25(4)2(2) 5 1 1 ( )( ) 16(16)2(18) 6 4 3 (0.3)(1000) (3)432 (1)1998 8 0 20(4)3(3 2 5 8 1 4 1 ( )( ) 6(25)9(12) 8 3 7 4 1 ( )(30) (1)442 (1)1312 5 2 (9)(6) 1
5、0(20) 9.5(23.5)()() 42(139) (4)3132512(26)(18) 4.2(0.4)(1.8)7.7 2 1 1 4 4 9 ()() 3.6()(2.8) 9 5 9 7 5 5 (9m9) y6(75a) 6m5(2n8t) (7mn)7(2m9a) 5 (124y)t 3(4a4mn4) 6 (ab)(ef) 4(8ay)6(m3p) 2 8 9m(2m8) 8m(6m3p)(5p9m) 4(2t7)8t 1(5y4)(7y2) 6(ab9a)(5a9b) 2(abc5a)7(2a7abc) 7(xy7z)(xy6z) 8(pqpr)(4pqpr) x 0.6x
6、0.66.18.5x 6 4 9 8 1 7x2x 3(x9)2(x5)7 9 9 1 3 (9x6)x1 9x5(8x)9 3 5 4 3x6.5(x7)15 0.2x0.63.33.3x 3(4x4)8 1 4 ()()(10) 24(2)3(2) 4 1 10 ( )( ) 18(29)3(12) 5 6 9 (3) (3)353 (1)1108 7 ()0 8(2)3 6 3 7 1 7 1 ( )( ) 6(29)2(17) 6 6 4 3 7 (30) (3)413 (1)2740 2 6 (18)(2) 2(12) 10.5(9)() 144(101) (5)344 4 6 41
7、6(18)(4) 9.6(2.1)(4.5)0.1 2 1 1 1 4 1 ()() 8.8()(1.2) 5 7 7 7 5 5 (4n8) z2(54a) 4m5(4n3z) (4mn)8(7n7a) 7 (146z)z 8(3b2ab3) (xy)(mn) 4(7by)4(n4p) 5n(6n2) n(4n3q)(5q3n) 3(8b1)9b 10(8y3)(6y3) 2(ab8a)(2a9b) 5(abc3a)5(5a7abc) 3(xy6z)(xy3z) 3(pqpr)(8pqpr) x 0.2x0.12.42.7x 6 4 3 8x8x 4(x5)4(x4)11 5 5 (4x7)
8、x1 6x8(9x)6 y3 y1 1 4x7.5(x3)15 3 6 0.6x0.615.5x 2(2x7)19 ()()(2) 21(3)2(3) 9 1 1 ( )( ) 12(13)9(10) 8 8 9 (0.4)(90) (1)342 (1)1739 3 0 27(3)3(3 2 8 5 1 9 1 ( )( ) 21(16)7(17) 7 8 8 9 9 (50) (4)423 (1)1747 8 8 (6)(19) 2(20) 3(23.5)()() 85(158) (0)323 5 6 3217(18)(10) 0.7(3)(0.5)6.8 2 1 1 2 2 6 ()()
9、8.8()(6.4) 9 5 3 7 5 5 (9a9) x3(15c) 19m6(6n5z) (9mn)4(9a3c) (144x)z 7(8a6ab7) (xy)(st) 3(9ay)3(m6q) 8 6 9n(3n4) n(8n9d)(3d2n) 9(4m5)8m 4(4x5)(8x3) 8(ab4a)(7a6b) 11(abc7a)6(2a7abc) 8(xy6z)(xy6z) 8(pqpr)(9pqpr) x 0.5x0.474.9x 9 4 9 2 1 3x9x 8(x3)5(x1)13 7 7 1 1 (4x5)x3 5x6(6x)5 9 4.5x8(x6)15 0.7x0.75.89.6x 3(6x5)18
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