1、七年级数学整式的加减法计算题大全 189 (4y3x z2)(5y5x4z2) (2m22m6)(8m8n3) (2x28x8)2(7x28x) 8(x24)6(x22) (x2y5xy9)7(x2y3xy8) 1 4(x215x13y)(x215x25y) 3 3 1 1(2k39k23)(5k32k28k) 4 3 (7k2 k)(6k24k5) (9a2 a4b)(7a29a9b) 7x2(6x28x2)(4x7) 3y2( x2y)(7x26y2) 1(7x29xyx)(9x24xy4x) 3 3 1(xy6y28)(x2xy2y26) 4 4 2 7(xyy)(xyx6) 3 6 (
2、5y7x5z2)(9y8x4z2) (2m24m4)( m8n7) (3x25x2)5(2x2 x) 2(x26)7(x25) (x2y6xy5)8(x2y2xy2) 1 1(x220x15y)(x213x18y) 8 8 1 1(9k33k28)(6k34k28k) 4 5 ( k29k)(9k2 k1) (3a28a4b)(4a28a5b) 4x2(9x27x7)(7x3) y2(6x2y)(6x23y2) 8(7x29xyx)(6x24xy2x) 7 7 3(xy6y23)(x2xy y22) 8 4 6 1(xyy)(xyx9) 5 3 (3y5x6z2)(7y x4z2) (6m27
3、m1)(7m4n4) (2x27x5)7(6x2 x) 4(x21)9(x29) (x2y7xy2)4(x2y7xy7) 1 4(x211x14y)(x218x24y) 5 5 1 1(2k38k29)(5k34k22k) 4 4 (8k23k)(7k23k4) (3a27a3b)(4a24a3b) 7x2(6x28x1)(4x2) 5y2(6x2y)(7x2 y2) 7(7x22xyx)(6x25xy4x) 8 2 3(xy2y23)(x2xy2y23) 3 4 1 9(xyy)(xyx5) 4 8 (2y x9z2)( y5x8z2) (3m2 m1)(3m3n2) (6x25x7)9(2x2 x)