人教版初二数学上册分式方程专项练习题42.docx

1、人教版初二数学上册分式方程专项练习题42 x 89 x3 3x15 4 6 x1 x21 6 8x26x x26x1 1 163 5 2x 80 9020v 50v6 6x x4 x 65 x2 4x8 5 42x8 4x264 5 76x27x x27x x x6 x6 x4 x9 58 x4 4x3x4 8x2x 8x81 4 62 3x4 6x8 2a9 x3m 90x x7 60 6030v 60v2 9x x6 5 9x9 x6 3 6x3 x x 45x1 (x1)(x4)3 97x x8 x 87 x3 3x9 2 4 x4 x216 3 8x23x x23x1 1 154 5

2、3x 40 2030v 60v2 2x x6 x 53 x2 2x4 2 55x9 25x281 4 15x24x x24x x x6 x1 x5 x6 21 x1 1x4x5 8x2x 6x61 2 22 4x2 8x4 4a8 x3m 90x x4 30 6010v 50v3 9x x1 3 8x2 x7 5 8x8 x x 39x5 (x5)(x1)1 98x x1 x 65 x6 6x30 8 6 x7 x249 3 2x22x x22x1 1 144 7 4x 80 5010v 80v5 8x x9 4x 96 x1 2x2 4 56x1 36x21 2 12x24x x24x x

3、x7 x5 x4 x8 73 x4 4x2x1 3x2x 4x46 4 45 4x1 8x2 5a6 x6m 60x x6 10 5030v 80v5 7x x4 5 7x4 x9 3 7x5 x x 37x7 (x7)(x8)1 85x x2 x 84 x5 5x20 5 5 x8 x264 4 7x22x x22x1 1 183 6 6x 20 1020v 80v3 1x x6 x 44 x1 4x4 6 75x3 25x29 2 26x23x x23x x x7 x6 x1 x8 78 x4 4x4x5 2x2x 7x71 1 42 3x1 6x2 7a7 x7m 10x x5 20 8

4、030v 50v5 8x x9 5 9x9 x1 3 9x3 x x 53x2 (x2)(x5)3 89x x7 x 91 x3 3x3 3 8 x9 x281 5 6x28x x28x1 1 112 5 6x 20 3040v 50v8 7x x5 5x 43 x2 3x6 4 48x6 64x236 9 75x26x x26x x x8 x9 x1 x7 78 x4 4x3x4 1x2x 9x93 4 14 3x4 6x8 7a1 x1m 50x x3 10 4020v 70v5 9x x2 3 6x4 x6 3 8x8 x x 47x6 (x6)(x7)5 92x x4 x 87 x3

5、3x15 7 9 x6 x236 1 9x28x x28x1 1 123 7 4x 30 9040v 50v4 4x x7 2x 35 x2 2x4 9 37x4 49x216 1 62x29x x29x x x6 x9 x5 x9 36 x3 3x4x2 8x2x 7x76 1 45 2x2 4x4 7a9 x6m 70x x1 80 2020v 80v1 7x x2 1 6x6 x6 5 8x9 x x 59x9 (x9)(x7)1 94x x9 x 69 x2 2x8 6 4 x7 x249 8 8x22x x22x1 1 162 7 6x 10 7030v 80v4 7x x9 x 2

6、8 x2 3x6 7 13x6 9x236 3 21x25x x25x x x9 x5 x5 x8 29 x2 2x2x4 2x2x 6x61 4 62 4x4 8x8 6a1 x4m 30x x7 90 8010v 60v1 9x x3 2 8x3 x5 4 6x3 x x 15x3 (x3)(x8)2 97x x5 x 82 x3 3x9 1 8 x9 x281 9 7x28x x28x1 1 164 5 4x 80 9040v 70v4 8x x7 2x 22 x1 2x2 4 82x3 4x29 6 88x27x x27x x x9 x8 x1 x8 27 x2 2x4x4 8x2x

7、6x61 3 44 2x1 4x2 5a6 x9m 50x x6 20 8040v 50v3 8x x6 5 7x3 x1 4 7x6 x x 34x6 (x6)(x4)5 83x x5 x 79 x4 4x12 4 3 x3 x29 7 7x23x x23x1 1 142 8 3x 50 9010v 50v4 4x x3 x 47 x2 4x8 5 55x9 25x281 1 85x26x x26x x x8 x6 x1 x8 17 x2 2x3x1 4x2x 5x51 4 42 3x2 6x4 5a4 x8m 50x x7 90 2020v 60v5 7x x8 3 6x9 x1 4 9x

8、3 x x 21x2 (x2)(x1)2 82x x3 x 83 x2 2x6 1 7 x4 x216 1 4x29x x29x1 1 133 7 3x 80 4040v 50v3 3x x4 5x 81 x1 4x4 7 14x7 16x249 4 94x26x x26x x x6 x2 x5 x7 32 x1 1x2x2 1x2x 5x51 4 45 4x2 8x4 2a8 x7m 50x x3 80 7010v 60v4 9x x1 2 9x1 x5 2 7x3 x x 96x7 (x7)(x7)2 73x x1 x 94 x5 5x15 2 3 x4 x216 5 1x25x x25x

9、1 1 113 7 5x 80 7030v 70v1 8x x5 x 58 x1 2x2 3 86x5 36x225 3 41x23x x23x x x7 x4 x1 x9 53 x2 2x4x1 7x2x 7x71 3 55 4x2 8x4 2a5 x5m 30x x7 70 3040v 80v3 9x x7 3 8x3 x6 2 8x3 x x 23x5 (x5)(x6)2 76x x3 x 87 x5 5x5 7 1 x1 x21 5 2x27x x27x1 1 183 8 3x 20 4040v 60v6 9x x9 5x 73 x1 4x4 1 54x5 16x225 8 19x25

10、x x25x x x8 x4 x4 x9 23 x1 1x4x1 8x2x 2x21 3 65 2x3 4x6 7a6 x4m 90x x3 50 8040v 50v4 7x x2 3 7x9 x9 2 7x9 x x 92x1 (x1)(x2)1 68x x4 x 87 x3 3x6 1 8 x3 x29 2 6x27x x27x1 1 164 8 2x 10 9020v 60v4 4x x5 4x 62 x1 4x4 9 84x2 16x24 3 36x26x x26x x x9 x9 x2 x9 83 x3 3x2x5 9x2x 5x51 3 15 4x2 8x4 7a2 x7m 70x

11、 x6 90 9040v 60v2 9x x2 5 6x4 x3 4 9x1 x x 21x8 (x8)(x9)2 68x x7 x 98 x4 4x12 2 2 x2 x24 1 6x28x x28x1 1 113 7 6x 50 5040v 50v3 6x x4 6x 99 x2 2x4 6 87x6 49x236 8 29x26x x26x x x7 x2 x2 x9 97 x1 1x4x1 6x2x 8x84 4 43 3x2 6x4 3a7 x4m 40x x1 10 8010v 80v2 8x x6 1 9x7 x9 4 7x7 x x 44x5 (x5)(x6)3 92x x5 x 94 x2 2x4 6 9 x8 x264 6 3x26x x26x1 1 132 8 3x 50 8040v 50v9 2x x2 5x 49 x2 2x4 2 35x3 25x29 9 77x23x x23x x x7 x5 x4 x8 26 x2 2x3x1 4x2x 7x71 2 54 3x2 6x4 3a9 x7m 40x x9 70 3020v 50v2 9x x8 3 8x6 x8 4 9x4 x x 42x8 (x8)(x7)4 62x x3 x 71 x6 6x12 2 4 x2 x24 2 1x25x x25x1 1 132 5 6x 80 5040v 60v