1、八年级因式分解专项训练 89x2416x29y2x4x4x28x4x2xy49ax236axy36ay2nanba2b29x2y30xy25y4x2169x24y2x3x24x224x36xxy44ax216axy16ay2nanba2b2x2y2xyy16x249x29y2x4xx26x9x3x2y29ax212axy4ay24a4ba2b24x2y16xy16y4x2916x2y2x4x2x24x4x3xy2ax26axy9ay25a5ba2b2x2y8xy16y16x2916x29y2x3xx22x1xx2y44ax216axy16ay24a4ba2b24x2y8xy4y9x22516x
2、29y2x4x4x224x36x3x2y49ax212axy4ay26a6ba2b29x2y24xy16y4x21616x24y2x4x24x28x4xxy4ax24axy4ay2nanba2b2x2y8xy16y16x2369x29y2x3x24x220x25x3xy2ax24axy4ay2dadba2b24x2y4xyy16x2369x29y2x4x24x212x9x4x2y49ax212axy4ay2tatba2b24x2y24xy36y16x214x2y2x4x9x212x4x3x2y49ax236axy36ay25a5ba2b2x2y12xy36yx2116x24y2x3xx24x4x2xy44ax216axy16ay22a2ba2b24x2y12xy9y9x2916x2y2x3x29x224x16xxy24ax216axy16ay25a5ba2b29x2y6xyy4x2369x29y2x4xx210x25x4x2y49ax230axy25ay25a5ba2b24x2y16xy16y16x24