1、七年级数学下册整式的加减法计算题 760(3k24k)(3k26k3) (3a2 a2b)(8a23a8b) 2x2(2x28x6)(4x1) 2y2(9x2y)(5x22y2) 1 (4x29xyx)(9x23xy6x) 5 9 1 (xy8y22)(x2xy2y27) 8 3 5 9 (xyy)(xyx5) 6 8 (7y6x6z2)(4y6x5z2) ( k24k)(6k26k6) (3a25a9b)(7a29a4b) 6x2(7x2 x3)(7x3) 5y2(7x2y)(2x29y2) 6 (2x26xyx)(6x24xy8x) 5 5 1 (xy7y23)(x2xy7y23) 6 8
2、 5 1 (xyy)(xyx2) 4 4 (9y7x6z2)(4y7x6z2) (4k26k)(5k25k4) ( a22a6b)(7a27a9b) 6x2(5x26x5)(3x2) y2(7x2y)(9x24y2) 2 (6x29xyx)( x28xy4x) 3 1 4 (xy y22)(x2xy9y24) 7 5 7 1 (xyy)(xyx8) 8 7 (5y8x5z2)(9y2x6z2) (5k24k)(3k26k6) (6a29a6b)(9a26a6b) 7x2(3x2 x2)(8x8) 8y2( x2y)(8x2 y2) 9 (2x28xyx)( x28xy2x) 8 1 1 (xy
3、5y25)(x2xy5y22) 6 6 6 1 (xyy)(xyx9) 5 6 (5y7x6z2)(9y4x2z2) (7k25k)(4k2 k3) (6a29a5b)(6a28a7b) 8x2(4x29x7)(6x1) 9y2(5x2y)(2x23y2) 6 (4x26xyx)(4x25xy4x) 7 1 9 (xy6y24)(x2xy9y22) 3 8 8 6 (xyy)(xyx4) 7 5 (2y6x9z2)(3y2x3z2) (3k25k)(9k25k3) (5a23a b)(5a24a b) x2(2x23x1)(8x9) 9y2( x2y)(5x24y2) 1 (3x28xyx)(5x2 xy8x) 4