1、ab5a2b264ab23a2b283ab 6x34x2y2y7x26yy2 (a2bb3)(8a2b28b3) (9x2yxy2)(x2yxy2) 4t23t2(4t25t)6(t29t) 195(1a)(1aa2)2(1aa2a3) (a2b5ab)(a2b3ab) (8x24x8)(2x22x2) (2t22t7)4(72t9t2) 8x2y2x2y 50a27.5a2 a2bccba2 5a2b0.7a2b 4 3 mnmn1 10a3b8.5a3b 5 6 ab5a2b297ab25a2b254ab 5x35x28y2y5x2yy2 (7a2b3b3)(a2b2b3) (5x2yxy
2、2)(x2y7xy2) 5n27n2(4n28n)8(n28n) 172(1a)(1aa2)3(1aa2a3) (a2b3ab)(a2b2ab) (7b23b9)(9b25b2) (5s25s4)5(43s4s2) 4x2y2x2y 90z217.5z2 a2bccba2 a2b0.5a2b 6 5 abab9 8x3y22.5x3y2 3 4 ab6a2b277ab24a2b298ab 5x38x25y2y4x24yy2 (a2b4b3)(6a2b2b3) (x2yxy2)(4x2y6xy2) 8s29s2(6s27s)8(s23s) 24(1a)(1aa2)4(1aa2a3) (a2b2a
3、b)(a2bab) (6x26x1)(9x26x8) (4s24s2)3(36s4s2) 3x2y3x2y 80x29.5x2 a2bccba2 a2b0.3a2b 3 6 stst5 9a3b5.5a3b7ab7a2b293ab23a2b262ab 9x39x29y28y6x26yy2 (2a2b3b3)(a2b24b3) (x2y6xy2)(x2y2xy2) 6z29z2(8z29z)9(z23z) 197(1a)(1aa2)3(1aa2a3) (3a2b6ab)(a2b6ab) (9s23s6)(2s22s1) (7y22y7)5(82y7y2) x2y4x2y 80b21.5b2 a2
4、bccba2 6a2b0.8a2b 5 4 pqpq3 6ab21.5ab2ab9a2b262ab23a2b285ab 2x35x24y2y6x29y4y2 (a2b8b3)(a2b28b3) (x2y8xy2)(x2yxy2) 7c23c2(5c28c)8(c27c) 48(1a)(1aa2)3(1aa2a3) (a2b4ab)(2a2b8ab) (9n25n6)(8n24n7) (2a24a7)2(95a4a2) x2y4x2y 100y210.5y2 a2bccba2 6a2b0.6a2b xyxy9 2x2y4.5x2y 5 5 9ab5a2b236ab25a2b243ab 2x33x22y2yx2y9y2 (a2bb3)(9a2b2b3) (x2yxy2)(2x2y3xy2) 6t29t2(7t28t)2(t27t) 115(1a)(1aa2)4(1aa2a3) (a2b7ab)(9a2bab) (4s26s6)(4s22s5) (2c26c3)5(45c8c2) 6x2y7x2y 50a217.5a2 a2bccba2 a2b0.6a2b 5 3 stst6 9x2y7.5x2y 2 5 ab9a2b225ab25a2b234ab 7x39x2y27yx2yy2 (8a2bb3)(a2b2b3) (3x2y4xy2)(x2y4xy2) 9y2