1、 9y2x2 x3yx218xy81y2 x29xy 8x 7 x3x2 9x24 3x27x2 y6y 8xa2b3 5ab6c 6c2da24a4 a2a24a4 a24 2 725m2 m25m9a 10b6b2 19a6xy3xy 7a3xy8(xy) nx xn xy7a7b 9ab2 8ab a2b2 49y2x2 x7yx218xy81y2 x29xy 9x 9 x5x6 25x236 5x62x y3y3 6x2a3b3 7a2b28c3d 4cda26a9 a2a25a6 a29 8 881m2 m29m7a 18b8b 13a310xy7x2y2 7b 6y7xy8(xy)
2、 bx xb xy3a3b 10ab3 16y2x2 x4yx24xy4y2 x22xy 9x 7 x5x2 25x24 5x29x2 y8y 7xab 3ab3c 6c3da26a9 a1a22a1 a29 3 68b2 15a4xy3xy3 5b 2y4xy 7x3(xy) ny yn xy5a5b 28ab 4ab a2b2 64y2x2 x8yx26xy9y2 x23xy 7x 7 x2x7 4x249 2x76x2 y7y2 2x2a3b3 5ab5c 6cda24a4 a1a24a3 a24 5 864m2 m28m2b 19a22x2y9xy35xy7(xy) ay5a5b 11
3、a3b 36y2x2 x6yx212xy36y2 x26xy 6x 2 x5x8 25x264 5x86x3 y37y3 8x3ab2 3ab35c3d 2cda26a9 a3a25a6 a29 4 625m2 m25m3a 18b2b3 17a6x2y5xy 9b 8y38xy7(xy) nm mn xy7a7b 22a2b 5x 4 x5x5 25x225 5x58x3 y7y3 5xab2 7a2b5c2d 8c2da26a9 a1a22a1 a29 5 3100m2 m210m9a 14b2b3 17a22xy3xy2 5a 4y 9x4(xy) am ma xy7a7b 12ab 1
4、0ab a2b2 4y2x2 x2yx210xy25y2 x25xy 6x 3 x9x3 y8y 2x2a2b 7a3b23c 6cda23a2 a29 4 45a 16b4b2 17a27x3y2 3a 3x4(xy) ay7a7b 24a2bx28xy16y2 x24xy 9x 5 x4x3 16x29 4x37y3 7x2ab 7ab7c3 4c2da26a9 a2 5 649m2 m27m3a 20b6b 13a23(xy) ax xa xy9a9b 14ab 7x 4 x7x y8y 5x3a3b3 3a3b39c3 4cda22a1 a2a23a2 a21 8 44m2 m22m7
5、a 10b4xy3 8y26xy9(xy) am5a5b 14a2b2 81y2x2 x9yx214xy49y2 x27xy 5x 1 x2x4 4x216 2x44x2 y3y 3x2a3b 3a2b8c2d 8cda22a1 a1a22a1 a21 1 881m2 m29m10x3y3(xy) nm3a3b 4a2b 49y2x2 x7yx212xy36y2 x26xy 4x 8 x4x1 16x21 4x14x3 y5y 6xa3b 3ab38cd 4cd 6 73a 16b10x2y7(xy) by yb xy7a7b 26a2b 2x 1 x3x6 9x236 3x65x y26y
6、5xab 3a2b4cd 4cda26a9 a3a24a3 a29 6 39m2 m23m7a 12b2b 13a7x2y 9a 4y26(xy) nm9a9b 14a3b 81y2x2 x9yx214xy49y2 x27xy8x2 y7y3 5x2a2b2 5ab36cd 6c3da24a4 a3a25a6 a24 6 67a 16b4b 15a34x3y 6y32xy6(xy) ny7a7b 11a2b2 7x 9 x4x4 16x216 4x43x2 y4y3 2xa2b3 9ab28cd 6c3da22a1 a3a24a3 a21 2 49a 16b2b2 19a318xy9(xy) nm mn