1、 1 5 ( )(30) (3)253 (1)1385 6 6 (13)(7) 20(1) 5(13) 1 1 () 10(77) (2)324 4 5 2112(3)(20) 6.5(7)(0.9)8.5 2 1 1 1 7 4 ()() 2.4()(8.4) 5 7 5 5 5 5 (2n7) z3(47c) 4x5(7b2z) (4xb)5(6n5c) 1 (46z)z 4(9a4ab6) 3 (ab)(st) 5(7ay)2(m2q) 7 4 9x(3x9) 6x(4x9q)(8qx) 5(6m6)4m 9(3a10)(4a1) 2(ab5a)(9a2b) 13(abc9a)4(2a8
2、abc) 6(xy8z)(xy8z) 9(pqpr)(8pqpr) 7 x 1 x 0.4x0.44.94.1x 6 4 6 2 1 6x5x 8(x6)7(x5)5 3 3 1 2 (4x4)x7 2x7(16x)2 9 5 y3 y1 1 2.5x4(x4)35 2 6 0.2x0.26.45.2x 6(3x6)16 ()()(1) 23(3)3(2) 3 1 8 ( )( ) 9(19)8(17) 4 2 9 (0.2)(6) (1)422 (1)2816 3 0 2(1)3(2 4 2 3 ( )( ) 1(28)1(20) 8 7 8 3 1 (80) (2)423 (1)2792
3、4 2 (16)(4) 20(10) 9.5(19)()() 33(59) (3)254 3 5 106(2)(3) 3.8(8.7)(4)0.7 2 1 1 2 1 7 ()() 3.4()(5.7) 5 7 7 5 5 5 (6a4) y6(45b) 10x9(7n6c) (6xn)3(5a4b) (126y)c 9(9d6xy8) 9 (xy)(pq) 2(7by)4(m7q) 3 2 3y(4y4) y(2y3c)(7c7y) 2(2m2)6m 4(2m7)(5m6) 9(ab6a)(6a5b) 5(abc4a)6(9a2abc) 3(xy4z)(xy2z) 3(pqpr)(9pqpr
4、) 5 x 1 x 0.9x0.59.23.7x 6 6 6 3x7x 7(x9)4(x5)8 5 4 1 1 (9x3)x2 5x2(7x)6 4 5 y3 y1 3 4x1(x4)5 4 6 0.3x0.453x 4(2x8)4 6 2 ()()(10) 7(2)2(3) 1 1 1 ( )( ) 25(24)3(12) 2 6 9 (0.7)(40) (2)332 (1)17020 2(2)3(1 7 2 5 1 1 8 ( )( ) 3(16)2(10) 2 2 7 1 9 ( )(80) (3)222 (1)1557 6 8 (5)(15) 10(5) 9(21.5)()() 11(
5、710) (4)243 9 2 2112(17)(10) 0.6(9.8)(4.3)4 2 1 1 3 6 8 ()() 4.1()(2.9) 9 9 3 5 5 5 (9x2) x5(53a) 3x7(4b5t) (5xb)6(9x9a) (66x)t 4(9b2ab7) (ab)(st) 3(8by)4(m9q) 8 2 4m(2m8) 5m(4m2c)(9cm) 4(2a5)4a 7(7x1)(2x4) 3(ab2a)(5a8b) 17(abc5a)6(6a4abc) 9(xy7z)(xy6z) 5(pqpr)(3pqpr) x 0.7x0.40.54.5x 6 6 9 5x9x 3(x
6、3)4(x4)4 3 8 1 3 (8x2)x1 4x7(15x)2 5 5 y3 y2 9 5x4(x1)25 2 5 0.3x0.269.7x 2(7x6)14 ()()(3) 14(4)2(3) 8 1 1 ( )( ) 18(14)6(14) 7 6 3 (0.8)(10) (4)323 (1)2785 2 ()0 10(3)3(4 5 2 5 1 3 1 ( )( ) 8(13)2(11) 5 4 7 (50) (5)342 (1)1782 5 5 (10)(3) 2(16) 9(9.5)() 142(134) (0)332 7 5 345(5)(10) 7.4(6.8)(0.7)7
7、.1 2 1 1 1 6 3 ()() 5.1()(7.6) 9 6 4 5 5 5 (8x1) y3(25c) 15a6(9y5c) (3ay)4(6x8c) 6 (102y)c 8(9d3ab4) 7 (yz)(st) 2(9by)5(m8q) 8 5 4a(5a6) 6a(4a4q)(6q7a) 8(9n6)7n 1(6n2)(5n3) 4(ab4a)(7a4b) 6(abc3a)7(7a6abc) 3(xy9z)(xy5z) 7(pqpr)(3pqpr) x 0.6x0.95.92.8x 6 8 3 8 1 4x2x 7(x6)4(x1)11 5 6 (3x2)x3 6x3(18x)4
8、 y1 y2 4 5x7(x8)20 3 6 0.8x0.67.97x 5(9x8)13 3 4 ()()(2) 13(3)2(1) 1 1 4 ( )( ) 22(19)63 6 3 (40) (5)423 (1)1423 8 0 10(1)2(3 3 9 2 ( ) 16(14)5(18) 3 6 6 7 1 (30) (1)332 (1)2603 6 5 (14)(10) 2(3) 14(2.5)() 83(57) (2)214 3 7 3720(28)(26) 9(2.3)(1.5)0.2 2 1 1 3 4 9 ()() 4.2()(3.6) 3 5 9 5 5 5 (4n1) z3(34c) 13a4(4n2t) (8an)2(3n7c) (46z)t 2(8d6bc3) 4 (bc)(st) 2(6ay)2(m2p) 2a(7a1) a(4a8q)(6q2a) 3(5s4)5s 9(7x10)(8x1) 4(ab3a)(2a4b) 7(abc5a)6(6a9abc) 8(xy4z)(xy4z) 8(pqpr)(8pqpr) x 0.2x0.31.20.2x 6 8 9 7x1x 5(x2)4(x1)2 7 6 1 4 (3x2)x2 6x7(19x)5 y2 y3 5 3x8(x5)30 0.1x0.56.25.4x 8(3x6)10
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