七年级数学下册计算题大全70.docx

1、七年级数学下册计算题大全70 7(8x2 xyx)(4x22xy5x) 6 1 1(xy3y25)(x2xy8y28) 8 7 6 5(xyy)(xyx9) 5 4 ( y3x2z2)(9y4x2z2) ( k2 k)(4k28k4) (5a24a4b)(8a28a4b) 9x2( x22x8)(2x1) 6y2(9x2y)(6x29y2) 1(7x25xyx)(5x23xy x) 3 9 7(xy6y25)(x2xy6y21) 8 6 1 8(xyy)(xyx9) 6 7 (4y9x5z2)(3y6x5z2) (7k24k)( k2 k8) (2a25a3b)( a27a5b) 4x2(2x

2、25x5)(4x2) 6y2(8x2y)( x28y2) 1(4x2 xyx)(5x25xy6x) 6 5 5(xy3y21)(x2xy8y29) 6 6 1 6(xyy)(xyx7) 3 5 (4y2x7z2)( y x4z2) (6k28k)( k22k7) (2a29a9b)(3a28a4b) 8x2( x2 x6)(2x9) 5y2(2x2y)(7x25y2) 1( x28xyx)(5x24xy3x) 5 5 3(xy8y22)(x2xy8y26) 6 4 9 1(xyy)(xyx8) 8 5 (5y7x6z2)(2y3x3z2) (6k26k)(9k2 k8) (7a2 a4b)(6

3、a24a7b) 7x2(7x22x5)(7x7) 4y2(9x2y)(9x23y2) 1(4x22xyx)(5x23xy5x) 8 1 7(xy y21)(x2xy4y26) 4 6 6 7(xyy)(xyx8) 7 6 (6y7x3z2)(3y2x7z2) (8k29k)(7k23k5) (6a23a2b)(5a24a9b) 8x2(4x24x7)(2x4) 8y2( x2y)(3x24y2) 2(3x25xyx)(4x22xy3x) 3 8 2(xy2y25)(x2xy3y26) 7 3 1 5(xyy)(xyx5) 3 6 (8y9x2z2)(6y6x5z2) (4k27k)(4k2 k

4、2) (9a26a6b)(7a23a7b) 3x2(6x29x7)(4x6) 9y2(4x2y)(5x24y2) 1(4x2 xyx)(8x28xy4x) 7 6 7(xy3y22)(x2xy3y24) 7 8 5 4(xyy)(xyx3) 4 5 (8y9x3z2)(5y6x z2) (7k27k)( k23k9) (4a22a3b)(8a27a5b) 6x2( x25x3)(2x1) 4y2(9x2y)(2x22y2) 7(4x22xyx)(5x23xy2x) 8 1 6(xy8y28)(x2xy4y21) 5 5 3 6(xyy)(xyx8) 4 5 (3y x3z2)(5y6x2z2)

5、 (2k2 k)(5k24k2) (4a24a b)(4a26a5b) 5x2(2x26x4)(9x7) 5y2( x2y)( x2 y2) 9(9x27xyx)(7x27xy x) 8 4 7(xy5y28)(x2xy y26) 5 8 7 5(xyy)(xyx7) 8 6 (8y4x7z2)(3y9x3z2) (8k23k)(9k29k3) (8a2 a2b)(7a2 a3b) 4x2(2x26x2)(8x9) y2(5x2y)(3x2 y2) 1(8x26xyx)(5x23xy x) 3 1 6(xy y22)(x2xy9y29) 3 7 2 4(xyy)(xyx1) 3 3 (8y9x

6、2z2)(4y x4z2) ( k23k)(6k26k9) ( a25a6b)(6a28a6b) 9x2(5x22x4)(4x7) 9y2(4x2y)(2x25y2) 6(9x23xyx)( x24xy4x) 7 7 1(xy6y22)(x2xy7y29) 6 5 1 5(xyy)(xyx5) 6 4 (6y4x2z2)(9y5x8z2) (8k26k)(8k24k4) ( a27a4b)(2a27a2b) 3x2( x2 x2)(2x6) 5y2(9x2y)(3x28y2) 1(2x22xyx)(2x2 xy9x) 7 1 1(xy9y23)(x2xy9y25) 4 4 8 5(xyy)(xyx9) 7 6 (6y3x5z2)(4y5x z2) (7k24k)( k29k3) (3a22a6b)(5a24a2b) 7x2(9x22x7)(5x3) 4y2(9x2y)(3x27y2) 1(6x26xyx)(9x2 xy5x) 3 2 4(xy6y29)(x2xy5y26) 3 3 1 7(xyy)(xyx3) 8 6 (9y2x2z2)(9y x2z2)