1、3 5 y1 y2 5 3x8(x1)40 4 5 1 2 (23x)(4x1) 3(9x8)145 5 x 0.9x0.26.18.3x9 4 6 8 1 9x3x 8(x6)7(x7)67 8 1 3 (4x3)x6 5x4(15x)98 5 y2 y1 6 4x6(x6)30 4 6 (52x)(4x3) 9(7x2)199 3 x 0.6x0.79.39.5x6 4 6 2 1 3x7x 4(x9)6(x3)149 7 (7x7)x7 6x3(12x)57 5 y3 y3 2 4x1(x9)25 2 5 (22x)(2x1) 6(6x9)87 9 5 x 1 x 0.7x0.23.20
2、.8x9 6 6 2x6x 3(x1)9(x4)149 9 (4x5)x6 9x4(6x)3y2 y2 7 3.5x7.5(x5)35 3 5 (33x)(5x1) 6(7x1)75 7 x 0.5x0.55.52.2x9 8 9 8x8x 3(x3)7(x2)197 2 (7x1)x7 2x8(1x)1y2 y1 8 3.5x5(x4)10 2 6 (12x)(4x5) 6(5x8)43 7 x 0.6x0.19.43.9x3 6 3 6x6x 4(x1)5(x8)14(9x3)x4 5x9(19x)62 5 y1 y2 8 2x5(x9)45(52x)(2x4) 4(4x2)166 3 x
3、 0.5x0.12.58.2x6 8 9 3x6x 2(x3)6(x5)201 1 (5x6)x2 2x2(2x)45 3.5x5.5(x7)30 3 6 (53x)(3x5) 5(5x6)44 9 x 0.3x0.13.33x9 2 3 4x2x 8(x8)9(x4)187 6 (5x5)x3 5x3(3x)6y1 y3 2 3x1.5(x8)15(24x)(4x1) 5(7x5)124 3 x 0.6x0.58.56.5x9 4 3 3x7x 7(x2)4(x5)9(3x6)x5 5x7(9x)8y3 y2 7 1x7.5(x6)5(12x)(2x1) 7(6x5)2x 0.1x0.63.45.5x3 8 6 3x9x 3(x3)7(x6)79 4 (8x4)x7 9x7(7x)9y2 y3 6 3x9.5(x2)25(43x)(5x3) 5(5x8)134 5