1、(9y25y3)5(44y3y2) 8x2y6x2y 10b20.5b2 a2bccba2 4a2b0.4a2bxyxy4 2x2y22.5x2y2 3 4 4ab8a2b229ab24a2b267ab 4x34x2y2y8x26yy2 (a2b8b3)(5a2b2b3) (x2y3xy2)(x2yxy2) 5a26a2(8a24a)4(a29a) 109(1a)(1aa2)5(1aa2a3) (a2bab)(a2b7ab) (6x24x6)(4x23x6) (9y26y9)3(64y5y2) 9x2y5x2y 20y215.5y2 a2bccba2 a2b0.5a2bxyxy2 9x2y8.
2、5x2y 6 4 ab8a2b286ab23a2b284ab 5x36x2y23yx2yy2 (9a2b2b3)(a2b29b3) (7x2y3xy2)(2x2y5xy2) 8m24m2(8m27m)5(m25m) 34(1a)(1aa2)4(1aa2a3) (a2b4ab)(a2bab) (3a24a1)(2a25a7) (5a24a3)3(26a2a2) 7x2y5x2y 10y20.5y2a2bccba2 3a2b0.4a2b 5 4 xyxy7 7ab27.5ab2 5 6 2ab2a2b226ab28a2b268ab 4x38x22y2yx2yy2 (3a2b8b3)(9a2b2b3
3、) (8x2y8xy2)(2x2y4xy2) 9b28b2(2b24b)2(b24b) 113(1a)(1aa2)4(1aa2a3) (a2b2ab)(a2b4ab) (4t25t5)(7t24t4) (5m24m5)4(23m4m2) 2x2y5x2y 20m27.5m2 a2bccba2 8a2b0.6a2b 3 3 mnmn10 10x2y28.5x2y2 2 5 ab5a2b293ab28a2b296ab 7x36x27y29y6x25y9y2 (9a2b2b3)(8a2b22b3) (5x2yxy2)(4x2y5xy2) 9x28x2(2x27x)4(x26x) 55(1a)(1aa
4、2)5(1aa2a3) (a2b5ab)(a2bab) (7n24n7)(8n24n8) (6n24n6)4(95n4n2) 2x2y5x2y 50m216.5m2a2bccba2 7a2b0.2a2b mnmn6 3x2y9.5x2y 4 3 ab6a2b223ab25a2b229ab 2x33x25y25y4x27y5y2 (8a2b6b3)(a2b26b3) (x2y2xy2)(x2yxy2) 8t27t2(7t22t)3(t26t) 194(1a)(1aa2)4(1aa2a3) (5a2bab)(2a2b6ab) (4s23s3)(5s26s1) (3c24c7)3(22c4c2) x
5、2y9x2y 10c27.5c2 a2bccba2 a2b0.5a2b 4 6 abab2 2a3b4.5a3bab4a2b239ab26a2b278ab 7x37x2y2yx27yy2 (a2bb3)(7a2b26b3) (x2y7xy2)(3x2yxy2) 9m27m2(8m29m)9(m24m) 76(1a)(1aa2)5(1aa2a3) (8a2b8ab)(3a2b8ab) (7m22m8)(3m24m2) (9n22n8)3(73n4n2) 7x2y2x2y 40y210.5y2a2bccba2 4a2b0.7a2b 2 3 pqpq3 3a3b1.5a3b 6 5 ab5a2b21
6、9ab26a2b216ab 7x35x28y2yx2y9y2 (a2bb3)(9a2b2b3) (x2yxy2)(3x2y6xy2) 4a29a2(7a23a)6(a22a) 123(1a)(1aa2)3(1aa2a3) (2a2b7ab)(a2bab) (5n23n3)(3n22n2) (7y25y7)4(55y4y2) 2x2y8x2y 100x29.5x2 a2bccba2 a2b0.8a2b 4 4 xyxy9 4x2y9.5x2y 6 3 7ab3a2b287ab23a2b264ab 3x39x27y2yx2yy2 (9a2bb3)(6a2b2b3) (x2yxy2)(x2y7xy2
7、) 7t24t2(8t26t)4(t25t) 79(1a)(1aa2)4(1aa2a3) (4a2b3ab)(6a2b8ab) (9m24m8)(9m26m3) (5a25a8)4(73a9a2) x2y9x2y 100t27.5t2a2bccba2 4a2b0.2a2babab4 7ab25.5ab26ab4a2b234ab24a2b258ab 8x34x27y2y6x2yy2 (2a2bb3)(2a2b26b3) (9x2y5xy2)(x2yxy2) 3s25s2(9s28s)4(s24s) 125(1a)(1aa2)2(1aa2a3) (6a2bab)(8a2b3ab) (9z25z3)
8、(6z23z8) (3x26x6)2(46x7x2) x2y3x2y 70t26.5t2 a2bccba2 a2b0.6a2b 4 2 xyxy10 9x2y8.5x2yab8a2b298ab27a2b222ab 9x38x24y2y9x28y2y2 (3a2bb3)(a2b23b3) (3x2y8xy2)(x2y6xy2) 5z24z2(5z28z)8(z26z) 206(1a)(1aa2)5(1aa2a3) (a2bab)(a2b5ab) (8s24s5)(6s22s1) (6y23y2)2(32y2y2) x2y7x2y 40t217.5t2 a2bccba2 a2b0.5a2b xyx
9、y8 3a2b21.5a2b2ab9a2b247ab23a2b235ab 8x35x24y2y4x2y6y2 (5a2b4b3)(3a2b2b3) (x2yxy2)(5x2y5xy2) 8t27t2(6t29t)6(t23t) 85(1a)(1aa2)2(1aa2a3) (8a2b3ab)(9a2bab) (9n25n4)(5n22n4) (7x24x8)3(66x6x2) x2y5x2y 90b211.5b2a2bccba2 a2b0.5a2b abab8 9a3b0.5a3b3ab5a2b237ab22a2b287ab 8x32x2y27yx27yy2 (8a2b6b3)(6a2b2b3) (x2yxy2)(9x2y5xy2) 4x24x2(8x26x)6(x26x) 52(1a)(1aa2)4(1aa2a3) (a2b7ab)(a2b5ab) (4c26c7)(5c23c6) (7z26z5)5(42z9z2) 2x2y5x2y 60b219.5b2a2bccba2 7a2b0.7a2b 6 6 pqpq5
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