1、七年级数学整式的加减法计算题大全 2075 4(xy7y27)(x2xy9y29) 6 5 7 1(xyy)(xyx7) 6 6 (8y9x4z2)(8y6x8z2) (7m24m2)( m3n1) (3x2 x7)3(9x25x) 5(x24)2(x29) (x2y5xy6)8(x2y9xy5) 4 1(x224x15y)(x220x23y) 5 5 1 1(2k32k23)(5k34k26k) 6 2 (5k26k)(4k24k4) (5a25a5b)(6a28a9b) 6x2(2x28x8)(9x2) 5y2(7x2y)(5x22y2) 3( x28xyx)(2x29xy8x) 4 2
2、5(xy3y27)(x2xy3y24) 3 4 1 7(xyy)(xyx8) 7 8 (6y x5z2)(8y4x6z2) (9m29m7)(9m n6) (9x22x6)5(9x28x) 5(x21)2(x29) (x2y4xy5)7(x2y5xy3) 1 1(x215x11y)(x216x21y) 8 8 1 1(9k3 k25)(5k37k25k) 4 3 (5k24k)( k23k4) ( a24a6b)(9a22a b) 6x2(3x29x2)(8x7) 7y2(5x2y)(4x25y2) 9(5x24xyx)(3x22xy8x) 8 1 1(xy7y25)(x2xy9y25) 5
3、8 7 2(xyy)(xyx8) 6 3 (5y6x2z2)(4y3x7z2) (8m24m7)(5m3n2) (2x22x6)2( x27x) 5(x23)7(x23) (x2y4xy8)4(x2y4xy3) 8 6(x215x17y)(x210x12y) 7 7 1 1(4k3 k29)(8k37k24k) 4 2 (8k26k)(8k22k2) (2a27a9b)(9a24a8b) 4x2(9x2 x8)(5x7) 6y2(7x2y)( x28y2) 1(4x27xyx)(4x2 xy4x) 3 1 5(xy8y28)(x2xy2y26) 8 4 8 1(xyy)(xyx3) 7 4 (3y4x8z2)(2y8x2z2)