七年级数学下册计算题大全222.docx

1、七年级数学下册计算题大全222 3(4x27xyx)(2x2 xy2x) 4 1 5(xy5y21)(x2xy6y25) 5 4 1 6(xyy)(xyx8) 8 7 (3y7x z2)(7y8x5z2) (4k23k)(9k24k7) (4a24a8b)(4a28a6b) 4x2( x23x5)( x1) y2(4x2y)(8x28y2) 2(2x24xyx)(8x22xy8x) 3 1 1(xy4y26)(x2xy8y26) 6 7 6 6(xyy)(xyx9) 7 7 ( y8x4z2)( y2x z2) (8k27k)(6k22k5) (3a27a8b)(3a28a2b) 5x2(4x

2、23x2)(8x5) 2y2(7x2y)(9x2 y2) 1(9x26xyx)(9x23xy2x) 5 1 1(xy8y28)(x2xy7y28) 5 7 1 1(xyy)(xyx1) 3 7 (2y x3z2)( y6x8z2) (7k27k)( k2 k9) (5a26a3b)(5a27a b) 2x2(9x27x7)( x4) 9y2(2x2y)(4x23y2) 6(6x23xyx)(4x2 xy9x) 7 1 4(xy5y24)(x2xy4y22) 8 3 1 3(xyy)(xyx9) 8 4 (8y7x8z2)(7y x5z2) (2k27k)(4k28k3) (8a29a5b)(4

3、a2 a b) 8x2(9x27x6)(4x5) 9y2(8x2y)(6x22y2) 1(2x25xyx)(5x23xy4x) 6 1 1(xy7y26)(x2xy3y24) 6 3 9 1(xyy)(xyx9) 8 3 (6y3x4z2)(9y3x9z2) (8k26k)(2k25k3) (3a27a2b)(4a25a3b) x2(6x24x6)( x9) 3y2(4x2y)(3x25y2) 7(8x23xyx)(9x25xy4x) 6 7 8(xy3y21)(x2xy7y24) 8 7 1 5(xyy)(xyx3) 3 6 (3y2x4z2)(5y8x3z2) (2k26k)( k28k8

4、) (3a28a3b)(4a29a7b) 9x2(9x23x8)( x5) 2y2( x2y)(6x22y2) 4(9x25xyx)(4x27xy4x) 5 1 7(xy y25)(x2xy2y25) 6 6 1 5(xyy)(xyx3) 7 4 (5y5x6z2)(2y5x9z2) (4k27k)(8k22k4) (4a2 a9b)(8a25a7b) 8x2(3x24x4)(8x6) 6y2(2x2y)(4x29y2) 4(8x2 xyx)(2x25xy4x) 3 1 3(xy9y27)(x2xy2y21) 6 4 1 1(xyy)(xyx9) 3 8 (8y4x3z2)(7y7x9z2)

5、(8k2 k)(2k23k6) (5a24a2b)(7a22a7b) 7x2(5x2 x6)(4x4) 2y2(8x2y)(5x25y2) 4(4x2 xyx)(6x24xy8x) 5 9 4(xy8y23)(x2xy2y25) 8 5 1 8(xyy)(xyx2) 8 7 (2y9x z2)(4y2x2z2) ( k27k)( k24k5) (6a2 a4b)(4a28a3b) 7x2(2x28x4)(4x8) 7y2(3x2y)(2x26y2) 4(2x2 xyx)(6x27xy3x) 5 1 1(xy9y22)(x2xy7y28) 3 7 1 7(xyy)(xyx2) 6 8 (8y6x

6、2z2)(7y7x7z2) (3k27k)(8k22k5) (8a22a6b)(8a25a8b) 5x2( x28x5)(8x4) 8y2(3x2y)(3x26y2) 5(7x27xyx)(4x24xy4x) 6 2 4(xy9y24)(x2xy6y29) 3 5 1 1(xyy)(xyx2) 5 3 ( y9x9z2)(4y7x4z2) (2k24k)(5k26k2) (2a24a b)( a28a5b) 2x2(6x26x3)(2x7) y2(9x2y)(8x27y2) 1(7x28xyx)(4x26xy9x) 3 2 3(xy7y29)(x2xy9y28) 3 4 5 4(xyy)(xyx1) 6 3 (6y7x7z2)(8y x7z2) (2k26k)(9k29k9) (6a24a8b)(8a23a7b) 9x2(5x24x2)( x3) 2y2(2x2y)( x24y2) 1(6x28xyx)( x24xy4x) 5 4 1(xy y24)(x2xy9y21) 5 6 3 9(xyy)(xyx3) 4 8 (5y7x2z2)(8y3x5z2)