七年级数学下册计算题大全243.docx

1、七年级数学下册计算题大全243 (7k28k)(2k23k7) (6a24a9b)(8a22a5b) 3x2(7x24x4)(4x4) 6y2(7x2y)(5x28y2) 1( x23xyx)(4x2 xy7x) 7 1 1(xy y27)(x2xy9y21) 5 4 5 2(xyy)(xyx7) 6 3 (3y7x3z2)(4y x8z2) (8k22k)( k25k3) (8a29a3b)(9a24a3b) 3x2(6x26x9)(8x1) 2y2(5x2y)(8x28y2) 7(7x26xyx)( x26xy3x) 8 1 7(xy4y23)(x2xy6y21) 4 8 6 3(xyy)

2、(xyx3) 5 4 (3y6x2z2)(5y3x7z2) (5k27k)(8k25k2) (7a23a3b)(8a28a4b) 2x2(7x26x5)(3x6) 2y2(7x2y)(7x28y2) 6(2x24xyx)(2x23xy4x) 7 4 7(xy y26)(x2xy3y26) 3 6 1 7(xyy)(xyx1) 5 8 (4y7x6z2)(2y3x9z2) (6k26k)(3k22k3) (9a29a2b)(9a24a6b) 5x2(2x29x5)(2x1) 4y2(9x2y)(4x26y2) 1(7x25xyx)(7x26xy5x) 5 4 7(xy y28)(x2xy6y29

3、) 5 6 1 4(xyy)(xyx4) 7 3 ( y x4z2)(2y5x6z2) (9k25k)(9k24k3) (7a28a3b)(6a24a8b) 9x2(5x29x6)(9x7) 5y2(4x2y)( x2 y2) 4(9x25xyx)(4x25xy3x) 3 1 2(xy y22)(x2xy4y23) 4 3 1 1(xyy)(xyx1) 8 4 (2y4x8z2)(4y6x6z2) (7k29k)(2k26k5) (5a29a4b)(9a24a4b) 9x2(9x27x5)(5x1) 2y2(6x2y)(7x24y2) 6(3x23xyx)(3x29xy2x) 7 1 8(xy

4、4y25)(x2xy y22) 7 7 5 6(xyy)(xyx5) 6 7 (7y8x9z2)(7y7x3z2) (5k23k)(9k23k2) (5a2 a b)(6a25a5b) 4x2(4x26x9)(3x1) 5y2(4x2y)(8x24y2) 6(3x29xyx)( x28xy2x) 5 4 9(xy5y23)(x2xy4y21) 5 8 1 4(xyy)(xyx7) 5 3 (9y x6z2)(9y2x z2) (3k25k)(4k28k2) (9a29a3b)(2a23a5b) 9x2(3x29x4)(4x3) 4y2(5x2y)( x22y2) 3(6x28xyx)(4x25

5、xy6x) 4 5 9(xy4y28)(x2xy4y25) 6 8 3 7(xyy)(xyx1) 4 8 (4y6x6z2)(4y8x4z2) (7k29k)(7k24k8) (9a2 a2b)(2a25a9b) 5x2(8x22x4)(8x1) 6y2( x2y)(2x25y2) 7(2x26xyx)(9x25xy7x) 6 2 2(xy3y27)(x2xy6y27) 3 3 1 5(xyy)(xyx3) 4 6 (8y x3z2)(8y7x8z2) ( k29k)(9k26k8) (4a26a6b)(6a27a8b) 3x2( x23x2)(9x9) 5y2(8x2y)(9x2 y2) 9

6、(8x25xyx)(8x27xy8x) 8 6 5(xy8y29)(x2xy7y21) 7 4 1 5(xyy)(xyx6) 5 6 (4y9x z2)(4y4x7z2) (2k26k)( k29k2) (2a2 a7b)(3a28a7b) 5x2(2x28x5)(2x6) 2y2(8x2y)(7x29y2) 8(4x23xyx)(5x23xy4x) 7 9 6(xy7y25)(x2xy2y23) 8 7 1 5(xyy)(xyx9) 3 4 (8y2x2z2)(2y3x6z2) ( k25k)( k23k5) (5a24a3b)( a25a6b) 6x2(7x26x6)(4x5) y2(5x2y)(3x2 y2) 8(4x23xyx)( x27xy x) 7 6 1(xy2y23)(x2xy2y27) 5 8 2 1(xyy)(xyx6) 3 8 (7y3x9z2)(5y4x z2) ( k28k)(3k29k8) (8a26a5b)(9a23a5b) 7x2(5x2 x1)(5x2) 3y2(4x2y)( x26y2)