1、(70) (5)332 (1)1773 5 8 (5)(5) 4(2) 10(5) 1 1 ()() 192(85) (2)212 4 6 2712(24)(6) 8.5(8.1)(4.4)3.9 2 1 1 2 7 3 ()() 2.6()(4.2) 7 9 9 7 5 5 (9y4) x9(47b) 7x3(8n3z) (8xn)9(4y9b) 2 (210x)z 5(7b5mn2) 3 (ab)(pq) 2(6ay)8(n9p) 5 9 7n(4n8) 5n(8n9s)(6s9n) 5(7m6)5m 3(3x7)(4x6) 3(ab3a)(7a3b) 12(abc6a)3(3a7abc)
2、 3(xy4z)(xy9z) 3(pqpr)(6pqpr) 7 x 1 x 0.1x0.85.77.8x 6 2 3 4 1 4x6x 3(x6)9(x3)15 3 6 1 4 (3x9)x8 8x9(6x)9 8 5 y2 y2 6 1x1.5(x2)45 2 5 0.7x0.74.16.8x 3(3x9)20 ()()(7) 28(4)3(4) 4 1 1 ( )( ) 5(20)8(16) (500) (5)342 (1)2931()0 9(2)2(2 3 6 3 1 8 3 ( )( ) 19(30)1(13) 4 7 4 1 8 (100) (5)352 (1)1149 2 7 (2
3、0)(3) 13(2) 3.5(3)()() 04(59) (3)323 7 4 2818(29)(5) 2.9(3.2)(1.1)1.1 2 1 1 4 7 2 ()() 5.5()(6.2) 5 3 9 7 5 5 (3b9) z7(75c) 16x8(4b5c) (3xb)3(7b4c) 5 (1410z)c 3(5c2ab8) 4 (yz)(pq) 2(7ax)8(m8q) 3 5 5b(4b8) 2b(8b7z)(8zb) 6(3t7)4t 2(4a1)(2a5) 4(ab3a)(9a3b) 6(abc5a)6(2a4abc) 9(xy6z)(xy9z) 7(pqpr)(8pqpr)
4、 5 x 1 x 0.8x0.45.45x 3 6 6 2 1 2x6x 6(x5)4(x1)16 5 4 1 1 (7x8)x2 3x8(6x)2 5 1x9.5(x6)45 0.7x0.22.21.4x 9(3x6)13 ()()(10) 26(2)3(5) 8 1 1 ( )( ) 18(18)6(17) 7 6 9 (0.5)(80) (4)233 (1)2824 4 ()0 12(1)2(2 4 2 4 1 1 1 ( ) 7(16)7(11) 4 4 2 6 1 (40) (4)233 (1)2898 7 7 (19)(18) 16(4) 13(2)() 202(114) (0)4
5、32 6 2 3216(15)(13) 6.5(5.3)(1.1)2.4 2 1 1 4 1 7 ()() 3.9()(4.8) 9 8 8 7 5 5 (7n1) z2(72a) 19m5(2n3z) (6mn)9(5n4a) 8 (204z)z 3(5b6ab4) 7 (yz)(ef) 2(6bx)5(n3q) 3 9 9b(6b5) b(2b4p)(3pb) 2(9a6)8a 8(5n3)(9n10) 4(ab8a)(3a3b) 4(abc6a)8(5a6abc) 5(xy2z)(xy3z) 9(pqpr)(7pqpr) x 0.3x0.155.7x 9 6 3 8 1 5x6x 5(x
6、4)5(x2)6 3 8 1 3 (5x9)x8 6x5(8x)4 9 5 y2 y1 6 1.5x9.5(x3)35 2 6 0.6x0.72.73.8x 9(9x9)5 4 1 ()()(8) 28(4)3( )( ) 29(16)7(11) 7 8 9 (0.2)(90) (2)412 (1)1301 7 0 9(4)2(5 5 4 7 1 4 1 ( )( ) 2(29)1(10) 3 5 7 1 1 (60) (2)312 (1)1878 5 5 (4)(17) 14(8) 5.5(6.5)() 112(71) (2)443 2 7 214(26)(20) 1.5(2.6)(1.7)
7、8.9 2 1 1 3 8 3 ()() 4.5()(1.3) 3 9 9 5 5 5 (2m1) y4(33c) 15x3(8y4t) (6xy)8(2m5c) 1 (26y)t 4(5a3ab5) (xy)(pq) 4(6by)9(m5p) 5 8 7a(8a4) 5a(2a5q)(9qa) 8(9t7)6t 1(3m10)(8m1) 9(ab8a)(5a2b) 20(abc3a)9(6a4abc) 9(xy5z)(xy5z) 5(pqpr)(7pqpr) x 0.4x0.93.78.3x 3 4 9 7x8x 7(x3)6(x9)12 5 2 (8x7)x9 2x5(12x)3 5 5
8、y3 y1 8 5x1.5(x6)20 0.2x0.980.1x 9(9x7)3 2 4 ()()(2) 15(2)2(5) 1 1 4 ( )( ) 27(24)4(15) 3 6 5 (0.4)(500) (4)412 (1)1289 9 0 4(3)2(1 8 4 4 1 7 4 ( ) 25(18)1(19) 2 6 5 (60) (2)332 (1)2127 4 8 (7)(17) 15(13) 10.5(5)() 143(92) (3)244 4 2 3213(12)(24) 7.9(8.4)(4.1)4.2 2 1 1 1 9 2 ()() 7.7()(7.4) 7 2 3 7
9、5 5 (4n7) z6(97b) 5a3(9y3t) (2ay)7(8n4b) 9 (610z)t 2(8c4xy4) (bc)(ef) 4(7ay)7(m2p) 4 9 9b(4b4) 9b(7b3q)(7q4b) 3(2m10)5m 7(7x8)(4x5) 9(ab6a)(9a8b) 11(abc4a)2(3a9abc) 5(xy8z)(xy4z) 7(pqpr)(5pqpr) x 0.2x0.91.62.4x 6 8 9 9x7x 2(x1)8(x8)6 5 7 (3x7)x2 9x3(7x)3 y1 y2 3 2.5x1.5(x8)5 3 6 0.6x0.85.88.2x 8(3x2)9
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