七年级数学下册整式的加减法计算题 327.docx

1、七年级数学下册整式的加减法计算题 327 (x2y6xy5)7(x2y4xy7) 8 1(x216x17y)(x216x10y) 7 7 1 1(9k33k23)(2k3 k25k) 2 3 (9m28m6)(9m7n2) (9x27x1)8(7x24x) 4(x25)6(x24) (x2y6xy4)8(x2y4xy8) 6 6(x215x18y)(x217x23y) 5 5 1 1(7k32k25)(5k34k23k) 6 4 (8m27m9)(8m n8) (2x24x9)2(8x2 x) 9(x23)3(x24) (x2y3xy5)2(x2y4xy2) 6 4(x223x17y)(x22

2、0x22y) 5 5 1 1(2k3 k23)(3k32k22k) 4 2 (7m2 m5)(2m3n3) (6x25x7)7(2x23x) 7(x22)8(x29) (x2y5xy3)6(x2y5xy5) 1 7(x222x20y)(x211x18y) 8 8 1 1(2k38k21)(4k3 k29k) 4 2 (6m26m4)(2m7n4) (4x2 x3)5(3x22x) 3(x24)6(x29) (x2y7xy2)4(x2y8xy8) 5 5(x229x14y)(x211x16y) 4 4 1 1(2k38k28)(8k3 k23k) 2 2 (2m24m3)(4m8n5) (8x2

3、8x3)9(5x27x) 3(x21)2(x23) (x2y5xy4)3(x2y6xy9) 5 5(x212x16y)(x219x13y) 6 6 1 1(9k3 k25)(3k33k21k) 2 3 (6m27m2)(2m3n4) (5x25x8)6(2x26x) 3(x21)4(x23) (x2y9xy4)6(x2y3xy8) 1 6(x216x17y)(x216x25y) 5 5 1 1(3k36k24)(9k36k22k) 2 2 (8m28m8)(9m9n1) (5x26x2)7(5x29x) 7(x27)2(x29) (x2y9xy5)7(x2y5xy2) 1 1(x214x19y)(x220x15y) 5 5 1 1( k3 k24)(7k34k27k) 4 3