1、(17) 8 8 7 7 1 ( )(30) (5)212 (1)2584 6 8 (14)(6) 20(1) 5.5(22.5) 1 1 () 44(148) (1)244 2 4 26(25)(25) 9.3(3.4)(1.1)5.2 2 1 1 2 1 3 ()() 5.6()(4.7) 3 4 3 7 5 5 (5y2) y6(69b) 20x4(8b5z) (4xb)7(4y8b) 1 (186y)z 9(6a7mn7) 5 (ab)(mn) 5(6ay)9(n3p) 3 4 7a(8a6) a(6a9z)(6za) 5(5a7)6a 5(7a9)(6a1) 5(ab4a)(2a7b
2、) 16(abc6a)4(2a2abc) 5(xy2z)(xy7z) 8(pqpr)(9pqpr) 7 x 1 x 0.2x0.37.14.6x 3 2 9 4 1 6x4x 7(x6)8(x5)17 9 6 1 2 (2x3)x7 4x7(16x)7 8 5 y3 y3 1 3x3(x5)30 2 5 0.9x0.76.84.6x 9(8x2)16 6 5 ()()(3) 25(1)2(4) ( )( ) 30(20)10(14) 6 8 5 (0.5)(8) (2)233 (1)2679 9 0 11(3)2(2 6 3 2 1 1 3 ( )( ) 12(28)8(20) 4 8 4 2
3、 4 ( )(20) (4)212 (1)2780 3 5 (15)(9) 13(6) 13(19.5)()() 125(187) (2)332 7 8 125(4)(2) 5.9(6)(0.7)5.1 2 1 1 2 2 7 ()() 6.8()(1.3) 9 8 3 7 5 5 (4n5) x5(68c) 4m4(8y9z) (5my)6(2n3c) 8 (66x)z 2(3b2bc3) 9 (bc)(st) 4(8ax)3(m5q) 8 3 7a(9a7) 8a(7a2p)(4p7a) 2(9s9)2s 7(2m10)(7m8) 7(ab9a)(5a2b) 14(abc7a)9(8a7a
4、bc) 2(xy9z)(xy6z) 6(pqpr)(8pqpr) x 0.7x0.92.19.9x 9 4 3 8 1 2x8x 8(x6)7(x2)12 3 7 1 1 (9x6)x8 7x9(10x)9 7 5 y1 y3 6 0.5x1.5(x5)40 3 5 0.3x0.14.58.8x 2(9x2)12 1 6 ()()(4) 19(1)3(5) 1 1 8 ( )( ) 19(15)2(16) 9 4 9 (0.6)(3) (3)413 (1)15250 18(3)3(1 3 9 7 ( )( ) 18(16)3(17) 7 5 4 6 1 (40) (2)323 (1)2777
5、5 3 (7)(19) 6(15) 7.5(2.5)()() 51(76) (2)254 3 2 343(19)(28) 0.6(7.5)(1.5)9.2 2 1 1 1 7 3 ()() 8.1()(5.6) 9 2 7 5 5 5 (8m6) y7(76c) 18m5(5y9z) (2my)5(3m3c) (22y)z 8(6c4mn5) (xy)(st) 5(7bx)5(n7p) 6 4 9a(9a1) a(4a4s)(8s4a) 3(9n2)8n 7(2n10)(9n4) 8(ab6a)(3a6b) 3(abc4a)2(3a5abc) 9(xy5z)(xy8z) 9(pqpr)(3pq
6、pr) 5 x 1 x 0.5x0.23.36.1x 6 4 3 7x3x 9(x6)4(x3)16 3 3 1 4 (3x7)x7 9x9(6x)1 9 5 y2 y3 4 2x3.5(x1)10 0.3x0.50.75.9x 7(5x9)8 3 1 ()()(8) 30(1)2(1) 7 1 1 ( )( ) 12(25)10(16) 6 8 7 (0.8)(10) (4)343 (1)2953 4 0 1(1)3 4 2 8 1 3 1 ( )( ) 15(17)10(13) 5 2 7 1 1 (100) (5)233 (1)1093 2 7 (4)(13) 9(10) 4.5(14.
7、5)()() 83(193) (2)244 4 5 3720(7)(11) 6.2(0.7)(4.1)1.3 2 1 1 4 6 8 ()() 7.7()(1.7) 5 9 7 7 5 5 (2b6) z7(92b) 17m7(8y3t) (5my)2(3b4b) 10 (124z)t 7(7b9bc6) (yz)(ef) 5(6by)2(n6q) 4 7 2n(3n7) 4n(5n9p)(4p8n) 3(4s2)2s 6(5x9)(2x9) 8(ab4a)(3a5b) 9(abc6a)7(4a9abc) 9(xy2z)(xy4z) 5(pqpr)(9pqpr) x 0.4x0.71.36.4
8、x 9 8 6 6x6x 8(x5)2(x2)9 1 3 (8x1)x2 3x4(17x)9 4 5 y2 y3 7 2.5x3(x1)5 0.7x0.78.53.3x 4(6x4)2 2 2 ()()(6) 25(3) ( )( ) 27(22)6(13) 6 4 9 (0.3)(500) (4)352 (1)1748 5 ()0 11(1)3(2 8 4 5 1 5 1 ( ) 26(16)9(20) 2 6 8 1 5 (20) (4)423 (1)1890 6 4 (7)(1) 14(2) 10(14)() 194(168) (3)333 8 4 711(8)(12) 7.6(7.2)
9、(4.2)0.7 2 1 1 3 6 1 ()() 9.4()(2.9) 3 8 4 7 5 5 (3y5) y8(38b) 16a9(5b5t) (4ab)9(9y4b) (64y)t 9(5a4mn9) 3 (bc)(st) 5(9ay)6(n4p) 4 6 8y(8y9) 2y(5y4d)(6d7y) 9(3b8)3b 5(7b10)(9b5) 5(ab3a)(2a9b) 11(abc9a)6(5a6abc) 4(xy6z)(xy5z) 7(pqpr)(5pqpr) x 0.5x0.70.58x 6 4 6 7x2x 6(x9)3(x8)19 7 6 (7x8)x2 6x7(2x)3 2 5 y3 y1 1 4.5x5.5(x1)20 0.7x0.145.5x 5(6x8)16
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