七年级数学下册整式的加减法计算题 397.docx

1、七年级数学下册整式的加减法计算题 397 (x2y7xy6)9(x2y3xy2) 8 8(x215x17y)(x219x13y) 7 7 1 1(7k36k26)(7k33k24k) 4 4 ( m22m8)(5m2n2) (5x23x8)8(2x29x) 6(x21)8(x22) (x2y8xy4)3(x2y4xy2) 6 8(x212x11y)(x215x22y) 7 7 1 1(3k33k29)(8k35k21k) 6 4 (6m28m8)(5m2n7) (2x24x3)9(6x23x) 2(x21)9(x23) (x2y8xy4)6(x2y7xy3) 6 1(x212x16y)(x22

2、0x27y) 5 5 1 1(6k3 k29)( k37k27k) 6 2 (3m23m6)(2m3n7) (6x24x9)8(4x27x) 6(x29)4(x25) (x2y5xy7)2(x2y8xy9) 9 1(x210x19y)(x220x25y) 8 8 1 1(7k3 k23)(3k37k26k) 6 4 (8m25m1)(3m9n2) (3x23x3)2( x29x) 2(x22)2(x28) (x2y5xy8)5(x2y5xy2) 9 1(x226x19y)(x215x14y) 8 8 1 1(4k36k28)(3k35k22k) 2 4 (9m29m1)(5m5n6) (4x2

3、5x7)3(8x28x) 9(x29)8(x27) (x2y2xy8)8(x2y3xy8) 9 1(x225x10y)(x211x17y) 8 8 1 1(8k36k28)(9k36k29k) 6 6 (2m23m2)(8m7n7) (7x25x5)9(7x25x) 7(x27)5(x21) (x2y6xy8)3(x2y6xy2) 6 4(x214x12y)(x218x11y) 5 5 1 1(8k36k27)(6k38k23k) 4 5 (7m28m6)(5m4n4) (4x2 x5)6(9x27x) 7(x25)9(x27) (x2y2xy8)4(x2y6xy3) 6 8(x220x19y)(x215x18y) 7 7 1 1(6k33k28)(2k34k29k) 4 3