1、9 5 y3 y1 6 4.5x0.5(x9)20 3 5 1 2 (33x)(4x4) 7(5x9)189 3 5 x 1 x 0.6x0.16.12.3x6 2 3 4 1 7x3x 6(x7)6(x9)13(8x5)x4 3x2(6x)95 5 y1 y2 9 5x7(x5)45 4 6 (14x)(5x4) 2(7x7)68 3 x 0.9x0.38.18.4x9 6 3 8x4x 8(x2)2(x3)25 2 (7x8)x1 4x7(2x)64 5 y2 y2 3 0.5x9(x6)40 4 5 (34x)(2x3) 5(4x5)20x 0.6x0.35.69.6x3 8 6 8x8
2、x 5(x8)5(x9)159 4 (9x4)x8 8x4(9x)63 5 y3 y3 6 1.5x6(x9)40 2 5 (52x)(2x4) 3(9x5)20x 0.1x0.85.39.8x6 6 9 5x7x 6(x4)5(x5)17 4 1 4 (3x9)x5 2x6(15x)1y3 y1 5 5x5.5(x5)15 3 6 (24x)(5x1) 8(2x4)38 9 x 0.8x0.69.33.7x4x3x 6(x7)5(x2)69 7 (9x4)x6 3x9(6x)58 5 y2 y3 7 5x4.5(x4)40(33x)(5x3) 7(3x3)3x 0.1x0.47.45.4x3
3、 4 9 7x4x 2(x5)6(x1)129 8 1 3 (5x1)x9 7x2(2x)9y1 y1 5 3x4.5(x6)30(13x)(2x3) 6(3x7)135 7 x 0.4x0.56.29.5x6 4 6 8 1 4x8x 5(x6)9(x5)57 6 (4x6)x2 4x7(15x)1y1 y3 6 2.5x5.5(x5)50(24x)(3x4) 7(2x9)194 9 x 0.3x0.84.79.1x7x9x 8(x9)9(x7)105 9 (4x4)x5 2x3(15x)12 2x0.5(x8)10(42x)(4x2) 2(9x1)10x 0.8x0.40.78.1x9 2 3 6x1x 3(x1)8(x2)19(7x1)x1 4x9(5x)19 4.5x7(x8)40(43x)(3x1) 7(3x6)88 7