1、七年级数学整式的加减法计算题大全 574 (8k25k)(7k2 k1) (6a26a4b)(3a24a6b) 2x2(5x29x1)(2x2) 2y2(8x2y)(8x29y2) 1(7x23xyx)(9x29xy5x) 6 1 1(xy4y21)(x2xy4y29) 6 6 1 9(xyy)(xyx9) 8 8 (5y x7z2)( y6x7z2) (6m27m9)(8m7n1) (3x2 x6)9(3x25x) 4(x25)5(x21) (x2y5xy2)4(x2y5xy5) 1 1(x227x20y)(x217x13y) 4 4 1 1(6k39k22)(9k3 k24k) 4 2 (
2、4k22k)(2k27k2) ( a29a8b)( a27a9b) 3x2(8x2 x7)(8x1) 4y2(9x2y)(5x23y2) 5( x29xyx)(8x24xy x) 6 5 8(xy4y25)(x2xy7y22) 4 7 8 6(xyy)(xyx9) 7 7 (3y8x5z2)(3y4x6z2) (7m28m5)(8m n8) (8x23x7)5(9x23x) 6(x29)8(x26) (x2y6xy7)7(x2y2xy5) 7 5(x217x11y)(x220x21y) 6 6 1 1(2k34k28)(6k32k24k) 2 4 ( k26k)(8k23k3) (2a24a4
3、b)(4a28a7b) 8x2(3x26x7)(2x5) 3y2(2x2y)(4x28y2) 1(3x24xyx)(5x28xy2x) 6 1 7(xy3y22)(x2xy4y28) 8 6 4 9(xyy)(xyx7) 3 8 (5y4x5z2)( y9x9z2) (8m26m6)(8m4n2) (3x2 x5)6(9x22x) 4(x24)5(x26) (x2y8xy3)2(x2y6xy9) 9 1(x211x15y)(x213x11y) 8 8 1 1(2k37k24)(7k33k22k) 6 5 (4k23k)(7k26k9) (3a24a9b)(6a25a5b) 9x2(3x24x2)(2x4)