七年级数学下册计算题大全209.docx

1、七年级数学下册计算题大全209 (3k26k)(8k28k7) (5a27a b)(8a26a7b) 2x2(8x24x6)( x6) 8y2(8x2y)(4x23y2) 4(7x27xyx)(7x2 xy x) 5 2 4(xy9y25)(x2xy6y26) 3 3 1 1(xyy)(xyx6) 8 4 (6y7x5z2)(2y9x3z2) ( k28k)(2k23k7) (5a27a3b)(4a27a2b) 2x2(5x28x7)(6x4) 5y2(8x2y)(3x23y2) 5(5x23xyx)(5x28xy8x) 6 1 5(xy5y29)(x2xy8y22) 6 4 1 6(xyy)

2、(xyx3) 8 7 (3y8x3z2)(2y9x6z2) (3k2 k)(7k28k1) ( a28a4b)(5a28a9b) 3x2(6x28x4)(9x8) 8y2(3x2y)(9x23y2) 1(7x28xyx)(4x24xy2x) 4 1 6(xy5y24)(x2xy3y22) 5 5 1 7(xyy)(xyx6) 8 6 (6y x4z2)(9y6x z2) ( k25k)(6k2 k5) ( a24a9b)(6a25a b) 7x2(5x23x2)(5x7) 2y2(6x2y)( x29y2) 1( x2 xyx)(6x27xy7x) 7 1 6(xy9y25)(x2xy5y27

3、) 6 5 6 8(xyy)(xyx1) 5 7 (9y9x7z2)(3y9x9z2) (8k25k)(4k26k1) ( a22a b)(7a26a4b) 5x2(9x29x6)( x6) 9y2(6x2y)(7x22y2) 5(2x28xyx)(3x22xy5x) 6 4 3(xy5y23)(x2xy4y28) 5 4 1 2(xyy)(xyx3) 7 3 (2y7x7z2)(7y9x4z2) (2k22k)(9k24k2) (4a27a5b)(5a25a4b) 6x2(6x23x5)(6x5) 3y2(9x2y)( x29y2) 1(3x24xyx)(8x29xy2x) 3 1 9(xy

4、6y22)(x2xy4y24) 5 8 2 5(xyy)(xyx1) 3 6 (3y x5z2)(6y6x3z2) (5k26k)(7k22k3) ( a25a2b)(6a2 a5b) 6x2(6x26x9)(2x7) 7y2(7x2y)(9x27y2) 1(2x23xyx)(7x25xy6x) 4 1 4(xy8y23)(x2xy5y24) 5 3 6 1(xyy)(xyx8) 7 6 (8y5x7z2)(6y5x4z2) (2k25k)(5k24k2) (4a24a7b)(9a29a4b) 6x2(4x24x2)(7x9) 6y2(8x2y)( x29y2) 1(5x25xyx)(8x24

5、xy5x) 4 1 1(xy y25)(x2xy3y28) 5 6 5 9(xyy)(xyx1) 6 8 (2y3x7z2)(3y2x7z2) (4k22k)(6k26k8) (6a25a2b)(6a29a9b) 5x2(4x22x6)(7x6) 5y2(9x2y)(6x26y2) 7( x25xyx)( x26xy8x) 8 1 1(xy5y23)(x2xy4y22) 8 7 6 1(xyy)(xyx4) 5 8 (5y2x9z2)(3y9x5z2) (7k23k)(7k23k4) (8a27a8b)(7a26a5b) 8x2(4x22x5)(2x5) 6y2(2x2y)(5x29y2) 6

6、(2x28xyx)(9x2 xy3x) 5 1 1(xy7y26)(x2xy7y21) 7 3 1 1(xyy)(xyx7) 8 8 (9y3x5z2)(2y8x4z2) (6k24k)(5k26k4) ( a23a4b)(8a2 a9b) 8x2(4x24x8)(5x8) 3y2(3x2y)(9x25y2) 6(4x24xyx)(5x2 xy2x) 7 4 1(xy7y22)(x2xy3y21) 5 3 9 1(xyy)(xyx4) 8 3 (3y2x4z2)(8y x7z2) (9k28k)( k27k1) (4a26a2b)(5a28a2b) 2x2(3x22x8)(5x4) 4y2(4x2y)(3x28y2) 1(4x22xyx)(5x24xy5x) 4 1 6(xy8y24)(x2xy9y24) 7 7 5 7(xyy)(xyx5) 6 8 (3y7x8z2)(4y x9z2) (3k29k)(7k23k2) (4a27a8b)(4a23a5b) 8x2(5x24x1)(5x1) 6y2(9x2y)(6x2 y2)