七年级数学下册计算题11.docx

1、七年级数学下册计算题11 (8k2 k)(3k22k8) (2a2 a9b)(2a2 a5b) 9x2(7x29x2)(2x3) 9y2(8x2y)( x26y2) 4(6x27xyx)(9x25xy x) 3 2 1(xy6y22)(x2xy2y25) 3 8 1 5(xyy)(xyx1) 4 4 (8y9x6z2)(4y x2z2) (7k29k)(9k28k9) (9a28a2b)( a27a9b) 7x2(2x26x9)(4x8) 5y2(4x2y)( x26y2) 1(6x28xyx)(5x23xy3x) 5 6 2(xy y26)(x2xy6y21) 5 3 2 8(xyy)(xy

2、x4) 3 7 (5y5x8z2)(3y6x6z2) (5k25k)(5k28k1) (5a22a3b)(5a28a4b) 6x2(3x24x9)(4x1) 4y2(8x2y)(3x29y2) 9(3x24xyx)(8x2 xy2x) 8 1 5(xy2y26)(x2xy9y24) 5 4 1 7(xyy)(xyx4) 4 6 ( y3x3z2)( y3x3z2) (4k29k)( k27k5) (4a2 a9b)(9a24a6b) 8x2(9x25x5)(8x1) 4y2(6x2y)(4x27y2) 5(7x2 xyx)( x29xy9x) 4 4 1(xy4y27)(x2xy9y28) 3

3、 8 1 1(xyy)(xyx5) 5 7 (8y x9z2)(3y x5z2) (7k28k)(5k23k1) (2a23a8b)(4a2 a4b) 8x2(3x22x5)( x4) 3y2(9x2y)( x23y2) 1( x26xyx)(4x23xy3x) 7 1 1(xy7y22)(x2xy y21) 6 6 4 1(xyy)(xyx1) 3 4 ( y6x4z2)(7y6x8z2) (7k22k)(6k23k1) (6a25a2b)(8a22a b) 6x2(5x29x6)(6x4) 6y2(6x2y)(9x2 y2) 1(8x27xyx)(5x26xy6x) 4 3 2(xy6y2

4、2)(x2xy9y22) 4 3 7 1(xyy)(xyx6) 6 4 (7y4x9z2)(5y9x2z2) (5k24k)(5k26k9) (4a23a b)(5a25a b) x2(8x28x5)(2x8) 2y2(4x2y)(4x27y2) 4(6x2 xyx)( x27xy9x) 5 8 8(xy5y24)(x2xy6y21) 7 7 5 4(xyy)(xyx4) 4 5 (5y2x4z2)(2y2x4z2) ( k22k)(3k23k3) (6a29a5b)(8a28a3b) 6x2(4x23x4)(4x8) 4y2(4x2y)(2x29y2) 8( x28xyx)( x27xy7x

5、) 7 1 1(xy5y29)(x2xy7y24) 6 5 7 4(xyy)(xyx7) 6 5 (7y3x z2)(5y2x3z2) (3k28k)(6k27k8) (6a27a7b)(5a29a7b) 9x2(7x2 x1)(9x3) 5y2(2x2y)(9x25y2) 9( x28xyx)(9x26xy2x) 8 8 7(xy2y23)(x2xy5y21) 7 6 1 6(xyy)(xyx1) 3 5 ( y5x3z2)(9y5x4z2) (6k28k)(6k2 k2) (3a2 a4b)(3a29a8b) 5x2( x25x8)(4x5) 2y2(4x2y)(4x24y2) 6( x2

6、5xyx)(5x23xy2x) 5 5 3(xy8y27)(x2xy y21) 6 4 7 1(xyy)(xyx9) 8 8 (4y x5z2)(2y4x8z2) (3k2 k)(8k27k2) (6a2 a9b)(9a25a8b) 5x2(7x26x8)(8x1) 3y2(6x2y)( x25y2) 3(8x26xyx)( x28xy9x) 4 4 4(xy3y24)(x2xy y26) 5 3 1 1(xyy)(xyx5) 5 5 (7y2x6z2)(4y4x8z2) (5k24k)(6k24k2) (2a25a8b)(2a22a4b) 3x2(9x22x6)(7x9) 4y2( x2y)

7、(3x24y2) 4(4x28xyx)(3x23xy3x) 3 6 3(xy2y24)(x2xy8y26) 7 4 1 1(xyy)(xyx2) 6 6 (7y4x5z2)(9y7x6z2) (4k29k)(2k27k6) (4a23a4b)(9a29a b) 5x2(3x2 x3)( x7) 7y2( x2y)(8x22y2) 7(5x24xyx)(6x28xy5x) 6 1 1(xy3y25)(x2xy3y24) 4 7 4 3(xyy)(xyx5) 5 4 (6y7x9z2)(2y6x3z2) (8k29k)(8k24k2) (6a29a5b)( a29a2b) 5x2(8x25x7)(

8、2x5) 4y2(8x2y)(9x28y2) 7(2x26xyx)(7x22xy x) 6 5 5(xy9y26)(x2xy7y28) 4 4 1 1(xyy)(xyx8) 7 4 (6y6x z2)(7y7x9z2) (5k26k)(2k2 k2) ( a28a6b)(6a26a9b) 6x2(6x22x3)(9x6) y2(8x2y)(5x27y2) 7(5x22xyx)(9x26xy4x) 6 5 1(xy3y28)(x2xy y23) 6 4 7 3(xyy)(xyx5) 6 4 (9y x9z2)(6y4x z2) (8k22k)( k24k1) ( a2 a5b)(5a2 a2b)

9、 7x2(9x24x3)(7x9) 2y2(5x2y)( x28y2) 9(5x26xyx)(2x2 xy7x) 8 1 4(xy5y29)(x2xy5y25) 6 3 7 3(xyy)(xyx3) 8 4 (9y9x3z2)(4y3x2z2) (6k29k)(2k2 k1) (9a22a9b)(5a29a3b) 6x2(9x25x1)(2x3) y2(4x2y)(5x23y2) 6(4x22xyx)(4x26xy2x) 5 7 8(xy6y23)(x2xy2y27) 6 7 6 2(xyy)(xyx8) 5 3 (4y8x7z2)(6y7x2z2) ( k22k)(2k27k3) ( a26

10、a3b)( a23a2b) 6x2(9x27x9)(8x1) 9y2(2x2y)(9x25y2) 1(9x25xyx)(2x27xy6x) 4 9 7(xy3y29)(x2xy5y29) 8 8 8 6(xyy)(xyx9) 7 7 (7y4x7z2)(4y2x4z2) (6k29k)( k2 k4) (4a29a9b)(9a26a6b) 4x2(3x2 x8)(5x5) 3y2(3x2y)(2x28y2) 1(6x2 xyx)(3x23xy6x) 3 8 2(xy2y28)(x2xy5y28) 7 3 6 6(xyy)(xyx8) 7 7 (4y x z2)(2y5x5z2) (5k2 k)

11、(6k23k5) (2a24a7b)(3a26a7b) 2x2(9x24x5)(2x2) 2y2(5x2y)(4x25y2) 7(3x27xyx)(3x26xy6x) 8 3 1(xy5y27)(x2xy2y26) 4 6 5 5(xyy)(xyx9) 6 4 (5y5x8z2)(2y2x4z2) (2k23k)(5k28k6) (8a22a4b)(8a23a4b) 3x2(7x27x9)(7x9) 6y2(8x2y)(8x23y2) 7(3x2 xyx)(7x26xy4x) 6 7 1(xy9y27)(x2xy7y24) 6 7 1 5(xyy)(xyx1) 7 4 (7y7x9z2)(6y

12、8x8z2) (3k24k)(2k26k3) (4a22a9b)(3a28a5b) x2(7x29x3)(2x3) 5y2(6x2y)(9x23y2) 3(3x2 xyx)(7x28xy7x) 4 6 2(xy y27)(x2xy5y24) 5 3 7 1(xyy)(xyx3) 6 8 (6y7x z2)( y8x6z2) (3k24k)(4k2 k5) (7a24a7b)( a22a8b) 9x2(9x25x5)(8x4) 3y2(2x2y)(3x27y2) 1(4x23xyx)(5x25xy7x) 8 1 7(xy7y23)(x2xy6y23) 3 6 8 5(xyy)(xyx1) 7 4

13、 (8y8x6z2)(2y5x7z2) (5k28k)(8k22k1) (4a2 a3b)(2a27a5b) 3x2(3x24x4)(2x8) y2(9x2y)(6x25y2) 9(6x26xyx)(6x29xy x) 8 6 7(xy y23)(x2xy5y27) 5 6 4 7(xyy)(xyx9) 3 8 ( y9x7z2)(2y3x2z2) (5k27k)(4k29k5) (4a27a5b)(8a25a3b) 9x2(3x23x4)(7x7) 2y2(7x2y)(8x24y2) 1(5x28xyx)(4x27xy x) 7 2 4(xy9y25)(x2xy9y23) 3 3 1 3(xyy)(xyx1) 4 4 (6y3x2z2)(9y2x4z2)