1、七年级数学整式的加减法计算题大全 576 1 1(xyy)(xyx3) 4 3 (3y4x3z2)(8y2x2z2) ( m23m3)(5m n4) (7x29x9)3(7x28x) 5(x28)5(x21) (x2y5xy4)5(x2y4xy4) 7 7(x227x11y)(x210x18y) 8 8 1 1(4k37k25)(6k37k29k) 6 3 (8k2 k)(8k23k7) (9a2 a4b)(5a24a3b) 2x2(6x24x7)(5x3) 9y2(3x2y)(7x29y2) 6(5x29xyx)(8x29xy8x) 5 9 9(xy y25)(x2xy7y26) 8 8 1
2、 5(xyy)(xyx7) 3 4 (6y3x7z2)(5y4x6z2) (6m26m4)(5m9n1) ( x23x7)5(7x28x) 3(x29)8(x26) (x2y9xy3)7(x2y5xy4) 1 1(x219x18y)(x217x24y) 6 6 1 1( k32k24)(7k34k25k) 4 3 (2k24k)(2k29k8) (9a26a6b)(6a26a2b) 5x2(4x22x2)(9x7) 2y2(5x2y)(2x28y2) 1(8x26xyx)(2x26xy3x) 3 1 1(xy9y28)(x2xy y24) 6 8 7 8(xyy)(xyx8) 6 7 (5y9
3、x z2)( y3x3z2) (5m23m4)( m n9) (8x22x5)2(6x29x) 6(x23)8(x26) (x2y7xy8)4(x2y2xy5) 5 5(x224x15y)(x220x16y) 4 4 1 1( k33k29)(7k34k23k) 6 6 (3k2 k)(8k27k9) (7a26a6b)( a24a6b) 6x2(2x27x6)(8x7) 7y2(5x2y)(2x24y2) 9(2x23xyx)(4x27xy6x) 8 3 4(xy3y22)(x2xy6y26) 4 3 8 1(xyy)(xyx5) 7 3 (7y2x7z2)(8y x5z2) (8m28m5)(9m8n7)