1、七年级数学整式的加减法计算题大全 336 (8k26k)(6k2 k3) (7a22a5b)(7a2 a9b) 7x2(8x22x6)(2x7) 4y2(4x2y)(9x28y2) 4( x24xyx)(7x26xy8x) 3 3 4(xy2y26)(x2xy2y28) 4 3 1 1(xyy)(xyx3) 7 6 ( y x4z2)(3y8x8z2) (9m25m4)(5m3n8) (3x23x4)8(9x2 x) 8(x22)2(x22) (x2y9xy5)2(x2y9xy7) 1 7(x215x17y)(x217x25y) 6 6 1 1(9k32k23)(5k38k29k) 4 4 (
2、8k29k)(2k29k1) (2a23a8b)(3a28a9b) 3x2(3x27x5)( x3) 9y2(8x2y)(9x23y2) 1(2x22xyx)(6x29xy3x) 3 1 1(xy5y28)(x2xy2y22) 4 7 1 1(xyy)(xyx5) 4 5 (4y4x2z2)(5y7x6z2) (6m28m7)(6m n7) (4x25x6)2(3x23x) 2(x28)8(x25) (x2y6xy2)7(x2y5xy2) 1 5(x227x12y)(x217x10y) 6 6 1 1(8k33k27)(6k33k22k) 6 4 (2k27k)(8k28k1) (3a29a
3、b)(8a27a8b) 8x2(8x25x8)(7x7) 7y2(3x2y)(6x26y2) 1(3x26xyx)(5x22xy x) 3 1 4(xy2y25)(x2xy7y22) 4 5 4 1(xyy)(xyx3) 3 8 (9y5x9z2)(8y4x8z2) (8m23m3)(4m n9) (5x25x2)3(4x24x) 5(x23)6(x29) (x2y6xy7)7(x2y5xy3) 6 1(x224x18y)(x211x18y) 5 5 1 1(3k3 k21)(4k34k21k) 4 5 (3k27k)( k27k1) (3a2 a6b)(5a24a3b) 6x2(5x28x1)(4x2)