1、八年级因式分解专项训练 559x2y30xy25y16x2169x2y2x3x2x24x4x3x2y24ax220axy25ay2nanba2b2x2y12xy36y16x23616x29y2x4x2x26x9x4x2y44ax24axyay2mamba2b2x2y4xy4y9x2169x29y2x4x9x212x4xxy4ax22axyay23a3ba2b24x2y24xy36y4x2916x29y2x4x24x220x25x4xy2ax212axy36ay2tatba2b24x2y16xy16y9x294x29y2x4x2x24x4x2xy49ax236axy36ay2cacba2b2x2
2、y2xyy4x219x29y2x4x2x24x4x4xy49ax26axyay24a4ba2b24x2y4xyyx2916x29y2x4x24x28x4xx2y49ax236axy36ay2dadba2b29x2y6xyy16x2254x29y2x3x4x24x1x2x2y24ax216axy16ay2nanba2b2x2y8xy16y16x21616x29y2x3xx22x1x2xy24ax28axy4ay2dadba2b29x2y24xy16y16x2369x2y2x4xx210x25x4x2y44ax212axy9ay24a4ba2b24x2y20xy25yx2364x29y2x4x9x236x36x4x2y44ax24axyay2tatba2b29x2y36xy36yx22516x2y2x3xx26x9x2x2y49ax236axy36ay2mamba2b2x2y4xy4y4x2254x24y2x3x9x230x25xxy24ax212axy9ay2mamba2b24x2y8xy4y