七年级数学下册计算题大全23.docx

1、七年级数学下册计算题大全23 (4k24k)( k28k6) (8a27a7b)(9a24a6b) x2(9x26x3)(5x4) 4y2(7x2y)(5x23y2) 4(4x25xyx)(7x29xy5x) 3 7 4(xy7y26)(x2xy3y22) 8 5 9 3(xyy)(xyx2) 8 4 ( y7x4z2)(7y3x9z2) (7k28k)(3k27k1) (3a24a7b)(8a25a9b) x2(5x24x2)(7x9) 5y2(4x2y)(4x26y2) 1(6x24xyx)(2x24xy4x) 7 1 4(xy2y28)(x2xy8y24) 4 3 5 2(xyy)(xy

2、x8) 6 3 (4y9x6z2)(5y3x7z2) (3k28k)(7k24k5) ( a29a8b)(7a22a2b) 3x2(9x24x2)(8x3) 3y2(7x2y)(3x29y2) 1(7x23xyx)(8x24xy6x) 4 5 7(xy7y27)(x2xy6y29) 4 8 1 7(xyy)(xyx6) 8 6 (2y4x9z2)(6y4x5z2) (8k26k)(6k24k4) (8a27a4b)( a25a3b) 3x2(8x2 x7)(8x5) 9y2(6x2y)(3x24y2) 1( x28xyx)(6x27xy6x) 5 1 2(xy6y21)(x2xy5y22) 4

3、 3 4 1(xyy)(xyx6) 5 6 (5y2x4z2)(5y5x5z2) ( k22k)(3k22k8) (6a22a3b)(2a23a5b) 6x2(6x2 x6)(2x8) 8y2(5x2y)(8x26y2) 1(3x22xyx)(5x22xy2x) 7 7 1(xy6y24)(x2xy8y24) 8 8 6 5(xyy)(xyx2) 5 6 (8y2x4z2)(7y2x9z2) (5k24k)( k27k9) (8a22a b)(7a23a8b) 7x2(5x2 x7)(5x6) 4y2(4x2y)(3x28y2) 1(5x2 xyx)(9x2 xy3x) 7 1 7(xy8y2

4、1)(x2xy4y25) 3 8 1 1(xyy)(xyx1) 3 3 (8y2x6z2)(5y8x9z2) (8k24k)(9k28k2) ( a23a4b)(9a25a9b) 6x2(8x26x3)(2x3) 6y2(2x2y)(5x29y2) 2(4x23xyx)(4x26xy8x) 3 7 8(xy6y29)(x2xy y21) 6 7 5 1(xyy)(xyx9) 4 7 (9y5x8z2)(7y2x9z2) (3k22k)(6k26k2) (4a27a3b)(7a26a8b) 6x2(2x25x2)(9x4) 2y2(3x2y)( x22y2) 5(5x28xyx)(4x2 xy

5、x) 4 1 8(xy2y28)(x2xy2y24) 5 7 6 6(xyy)(xyx1) 7 7 (8y x9z2)(3y2x8z2) (9k24k)(9k29k6) (5a24a9b)(5a27a3b) 9x2(3x29x6)(7x6) 9y2(8x2y)(5x28y2) 5( x2 xyx)( x28xy4x) 4 5 1(xy7y25)(x2xy6y22) 4 4 1 1(xyy)(xyx5) 5 4 (6y x4z2)(5y6x4z2) (8k2 k)(3k27k7) (5a26a3b)( a23a3b) 2x2(3x23x5)( x7) 3y2(5x2y)(5x24y2) 7(7x

6、27xyx)(4x22xy8x) 8 1 6(xy9y25)(x2xy4y25) 8 7 1 8(xyy)(xyx6) 7 7 (8y9x5z2)(9y4x z2) (7k23k)(5k25k5) (6a25a3b)(8a27a5b) 9x2(3x28x6)(8x2) 6y2(2x2y)(3x23y2) 1(4x26xyx)(3x23xy9x) 6 7 1(xy8y22)(x2xy4y22) 6 3 5 1(xyy)(xyx3) 6 6 (3y6x6z2)(2y9x2z2) (4k23k)(5k29k5) (6a22a3b)(5a24a6b) 6x2(5x28x8)(9x7) 6y2( x2y)(4x26y2) 4(8x29xyx)(3x22xy3x) 3 5 2(xy4y26)(x2xy3y29) 4 3 5 1(xyy)(xyx5) 4 8 (8y4x5z2)(6y x6z2) (4k29k)(6k22k5) (9a26a5b)(7a25a8b) x2(4x23x6)(3x1) y2(6x2y)(9x27y2)