七年级数学下册整式的加减法练习题精选强烈推荐 111.docx

1、七年级数学下册整式的加减法练习题精选强烈推荐 111 (x2y7xy7)4(x2y4xy3) 1 5(x210x14y)(x210x30y) 4 4 1 1(7k35k24)(3k37k27k) 4 3 (2k29k)(7k27k6) (6a27a3b)(3a24a2b) 5x2(3x24x1)(4x3) 3y2(3x2y)(9x28y2) 8( x26xyx)( x26xy6x) 7 1 1(xy4y21)(x2xy9y22) 8 3 1 1(xyy)(xyx2) 5 4 (9y6x4z2)(2y7x2z2) (5m26m7)(4m n9) (6x22x6)2(9x22x) 3(x26)5(

2、x24) (x2y5xy9)7(x2y9xy7) 7 1(x227x16y)(x219x19y) 6 6 1 1(8k33k25)(5k37k27k) 4 4 (2k2 k)(5k25k9) (8a23a b)(7a27a5b) 2x2(2x29x8)(7x7) 9y2(5x2y)(6x24y2) 4(2x28xyx)(9x23xy9x) 3 1 1(xy5y24)(x2xy9y22) 3 6 1 6(xyy)(xyx9) 3 7 ( y7x2z2)(5y x9z2) (4m25m3)(5m9n6) (9x24x5)2( x23x) 9(x27)4(x25) (x2y2xy2)7(x2y5xy

3、3) 2 1(x220x13y)(x211x17y) 3 3 1 1(7k3 k24)(3k39k21k) 6 6 (3k27k)(4k26k7) (9a22a2b)(6a27a2b) 9x2(7x26x3)( x2) 9y2(3x2y)(6x2 y2) 1(7x25xyx)(6x28xy7x) 3 1 4(xy4y24)(x2xy5y29) 5 3 6 2(xyy)(xyx5) 5 3 (6y2x9z2)( y2x5z2) (4m25m6)(6m4n5) (7x28x8)9(5x22x) 5(x22)8(x28) (x2y6xy4)2(x2y9xy2) 2 2(x223x12y)(x212x24y) 3 3 1 1(8k37k21)(9k33k24k) 6 4