1、6 5 y2 y1 9 0.5x8(x3)35 3 5 (52x)(5x4) 4(6x7)43 9 x 0.3x0.82.52.3x3 2 6 8 1 5x8x 2(x2)8(x4)55 6 1 4 (2x5)x4 7x4(2x)54 5 y2 y3 9 3.5x9(x6)40 4 6 (14x)(2x3) 9(5x5)96 7 x 0.4x0.79.49.2x3 2 3 2 1 8x6x 7(x7)9(x2)57 5 1 1 (9x5)x4 2x7(5x)9y1 y2 3 2.5x7.5(x2)50 2 5 (43x)(4x5) 8(6x4)165 x 1 x 0.9x0.549.1x6 6
2、 9 2x7x 3(x2)5(x4)99 2 1 3 (7x3)x7 9x9(11x)78 5 y3 y2 4 3x2(x7)5(42x)(3x2) 3(9x7)205 7 x 0.8x0.30.67.9x6 8 3 2x6x 5(x7)5(x2)55 4 (9x6)x8 7x5(2x)4y1 y2 3 0.5x7.5(x2)40(43x)(3x3) 9(4x8)6x 0.1x0.53.11.6x6 8 9 7x1x 2(x8)9(x9)45 3 (8x7)x2 4x9(19x)63 5 y1 y1 7 2.5x6(x6)5(12x)(3x5) 6(8x5)192 9 x 0.3x0.40.9
3、4.5x8x9x 2(x5)5(x8)107 4 (6x1)x4 5x3(8x)4y1 y3 5 3x6.5(x1)10 3 6 (13x)(4x4) 5(6x9)12x 0.2x0.46.49.5x9 4 3 6x1x 9(x2)4(x6)55 9 (4x2)x7 6x3(14x)47 3x8.5(x1)20(54x)(2x1) 8(4x9)18x 0.7x0.73.77.4x6 6 6 8x2x 6(x4)2(x5)143 2 (3x5)x1 8x3(4x)5y3 y1 1 3.5x1.5(x1)15 4 5 (54x)(2x4) 6(9x1)14x 0.5x0.14.26.7x6 4 6 8x5x 4(x5)5(x6)47 3 (8x9)x4 7x8(18x)49 5 y2 y1 8 4.5x3.5(x5)5(22x)(5x4) 6(2x4)57 7