1、0 30(4)3(4 5 4 4 1 1 2 ( )( ) 14(10)7(10) 2 6 3 1 4 ( )(20) (1)453 (1)1954 7 3 (11)(12) 4(1) 13.5(12.5) 1 1 ()() 153(1310) (4)342 8 6 1012(9)(16) 6(2.8)(3.2)9.9 2 1 1 4 7 8 ()() 9.6()(5.6) 7 2 6 5 5 5 (4y7) x8(72c) 14x6(9b3z) (3xb)2(7y8c) 5 (124x)z 6(8b5xy6) 6 (yz)(st) 4(6by)4(n8p) 4 8 3b(9b4) b(5b6
2、c)(2cb) 3(7n8)3n 7(4n7)(7n1) 2(ab6a)(2a8b) 7(abc5a)5(2a8abc) 5(xy7z)(xy4z) 3(pqpr)(7pqpr) 7 x 1 x 0.9x0.38.28.6x 3 4 3 4 1 5x8x 3(x7)8(x6)17 3 9 1 1 (7x7)x2 3x7(20x)1 3 5 y3 y3 3 1.5x8(x5)25 4 6 0.6x0.87.16.3x 3(6x5)14 ()()(1) 20(2)2(5) 7 1 4 ( )( ) 28(20)10(20) 6 8 3 (0.1)(5) (1)333 (1)2556 9 ()0 3
3、(4)3(5 5 6 8 1 1 5 ( ) 22(16)5(13) 8 5 6 1 1 ( )(100) (5)312 (1)1646 3 4 (2)(15) 13(20) 5.5(23.5)()() 151(92) (5)343 3 2 3910(11)(2) 6.1(1.4)(3.7)7.5 2 1 1 2 6 9 ()() 8.6()(1.7) 7 7 5 5 5 5 (9m4) x9(12b) 12m7(3n8z) (3mn)2(2m4b) 8 (104x)z 4(4d9ab7) 9 (yz)(st) 3(8ay)9(n6q) 7 4 6x(8x3) 7x(3x4c)(6c6x) 8
4、(7s4)9s 3(9a5)(2a9) 6(ab4a)(7a8b) 5(abc6a)3(8a8abc) 4(xy2z)(xy4z) 5(pqpr)(2pqpr) 5 x 1 x 0.7x0.13.53.3x 3 8 9 2 1 4x3x 7(x9)8(x8)6 9 7 1 3 (8x1)x7 4x3(20x)6 2 5 y1 y2 6 1x2(x5)45 2 5 0.6x0.50.85.2x 5(9x6)12 5 1 ()()(3) 3(4)2(1) 1 1 4 ( )( ) 17(12)2(11) 6 4 5 (0.5)(1) (4)352 (1)25480 3(2)2 5 5 7 1 4
5、3 ( )( ) 21(30)10(13) 4 5 2 4 1 (60) (2)442 (1)1582 3 6 (10)(8) 14(12) 2.5(23.5)()() 133(202) (0)443 5 3 193(20)(29) 7.5(3.3)(0.9)7.4 2 1 1 4 3 3 ()() 1.8()(4.3) 7 6 5 5 5 5 (6y7) y9(83a) 10a6(4n9z) (7an)3(6y7a) 7 (44y)z 2(8d5ab8) (ab)(mn) 2(6ax)5(m6q) 4x(7x3) 9x(6x2p)(9px) 3(4b10)2b 2(4n5)(8n2) 4(a
6、b2a)(5a4b) 20(abc7a)5(2a5abc) 7(xy3z)(xy6z) 8(pqpr)(2pqpr) x 0.4x0.621.6x 6 8 9 8 1 2x9x 3(x3)4(x9)10 (3x9)x1 4x6(18x)5 9 5 y1 y2 8 2x5(x9)50 0.6x0.31.75.9x 6(4x1)16 2 2 ()()(3) 29(1)2(3) 1 1 8 ( )( ) 29(13)3(19) 2 2 7 (0.1)(300) (1)413 (1)15410 7(3 8 8 6 ( )( ) 14(23)8(15) 5 8 6 (40) (2)312 (1)1425 2 2 (14)(6) 18(5) 1(0.5)() 111(104) (4)412 6 4 3119(2)(20) 4.2(2.2)(1.5)4.4 2 1 1 3 9 8 ()() 5.4()(7.6) 7 4 3 7 5 5 (3a2) y7(63c) 19m9(2y5z) (6my)6(9a9c) 1 (1010y)z 7(9d5ab8) 2 (xy)(ef) 5(8ay)4(n6p) 8 8 7b(5b7) b(4b3d)(2d7b) 9(9m8)4m 10(2y10)(3y9)
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