1、七年级数学整式的加减法计算题大全 345 1 1(2k32k21)(8k39k23k) 6 4 (2k29k)( k27k3) ( a28a8b)(4a24a7b) 7x2(8x27x6)(4x2) 6y2(7x2y)(7x2 y2) 1(6x2 xyx)(2x26xy6x) 7 7 9(xy8y26)(x2xy2y24) 6 8 1 4(xyy)(xyx8) 3 5 ( y x5z2)(8y9x5z2) (9m29m8)(5m9n5) (3x22x3)2(8x22x) 2(x24)8(x23) (x2y6xy7)9(x2y7xy4) 9 9(x230x17y)(x210x20y) 8 8 1
2、 1(8k38k28)(7k32k29k) 6 5 (2k28k)(2k29k1) (3a22a7b)( a22a3b) 4x2(9x2 x8)(9x9) 4y2(4x2y)(8x24y2) 1(4x29xyx)( x25xy4x) 3 6 4(xy4y29)(x2xy4y27) 7 3 4 2(xyy)(xyx7) 5 3 (7y6x6z2)(5y x3z2) (2m2 m4)(8m9n4) ( x25x3)3(3x28x) 3(x26)5(x26) (x2y4xy9)2(x2y5xy6) 1 6(x216x10y)(x212x12y) 5 5 1 1(5k36k26)(7k32k23k)
3、4 2 (3k26k)(2k22k9) (9a28a b)( a24a b) 8x2(8x2 x8)(5x3) 9y2(4x2y)( x28y2) 3(4x25xyx)(4x29xy2x) 4 5 5(xy3y27)(x2xy5y27) 6 4 1 5(xyy)(xyx2) 5 6 (2y2x8z2)( y4x6z2) (5m26m8)( m8n4) (6x26x4)6( x29x) 4(x22)6(x22) (x2y9xy2)8(x2y6xy9) 1 3(x220x20y)(x213x15y) 4 4 1 1( k39k26)(3k3 k29k) 2 2 (8k28k)(7k22k4) ( a25a b)(4a28a5b)