七年级数学下册整式的加减法计算题 359.docx

1、七年级数学下册整式的加减法计算题 359 (x2y4xy9)7(x2y9xy2) 8 8(x225x16y)(x216x14y) 7 7 1 1(6k39k25)(2k38k25k) 4 3 (6m26m7)(4m2n5) (2x27x6)2(6x26x) 6(x26)4(x27) (x2y9xy9)2(x2y7xy3) 1 9(x216x18y)(x210x11y) 8 8 1 1(6k34k22)(6k33k26k) 2 2 (9m2 m4)(9m n3) (4x27x6)2(8x25x) 9(x27)4(x25) (x2y4xy2)9(x2y7xy2) 7 9(x219x10y)(x21

2、2x29y) 8 8 1 1(7k35k25)(3k33k24k) 6 5 (2m26m4)(2m9n2) (6x23x8)3(7x29x) 3(x25)9(x25) (x2y9xy9)6(x2y5xy6) 6 1(x228x12y)(x212x10y) 7 7 1 1(4k35k24)(6k3 k27k) 2 2 (6m29m7)(4m3n3) (8x26x4)9(3x25x) 7(x29)5(x26) (x2y7xy6)9(x2y7xy4) 2 4(x224x13y)(x218x13y) 3 3 1 1(4k38k24)(9k33k25k) 2 2 (3m23m4)(9m4n3) (6x2

3、5x2)3(4x23x) 9(x27)8(x28) (x2y4xy7)8(x2y8xy9) 2 4(x211x11y)(x219x22y) 3 3 1 1(2k38k28)(2k36k25k) 2 4 (5m27m3)(6m3n1) (7x25x1)6(2x23x) 5(x27)6(x21) (x2y9xy9)9(x2y6xy4) 6 8(x230x14y)(x215x19y) 7 7 1 1(4k33k26)(4k34k25k) 6 2 (9m29m2)( m4n8) (2x26x9)2(5x28x) 2(x28)7(x23) (x2y9xy5)9(x2y5xy8) 9 9(x210x10y)(x220x12y) 8 8 1 1(2k34k25)(5k38k24k) 4 5