七年级数学下册计算题大全227.docx

1、七年级数学下册计算题大全227 (9k25k)(6k27k2) (6a28a4b)(3a29a6b) 9x2(8x25x6)(7x5) 3y2(7x2y)(5x26y2) 1(6x29xyx)(6x28xy7x) 6 4 1(xy8y27)(x2xy2y21) 3 6 1 3(xyy)(xyx2) 8 4 (2y4x6z2)(2y2x5z2) (7k27k)(8k25k6) (2a2 a6b)(9a26a4b) 8x2(4x23x7)(5x5) 6y2(8x2y)(8x27y2) 1(8x29xyx)(5x27xy8x) 5 7 2(xy y28)(x2xy5y26) 8 3 2 4(xyy)

2、(xyx8) 3 5 ( y5x7z2)(9y2x2z2) (4k26k)(8k26k2) (3a27a7b)(7a22a9b) 6x2(7x26x2)(7x6) 4y2(7x2y)(5x2 y2) 5(3x24xyx)(8x23xy3x) 4 1 5(xy8y25)(x2xy y28) 3 6 4 1(xyy)(xyx9) 3 3 ( y8x9z2)(6y5x6z2) (8k28k)(8k2 k6) ( a28a5b)(7a24a6b) 7x2(7x29x5)( x2) 4y2(9x2y)(5x26y2) 3(9x23xyx)(9x23xy5x) 4 2 1(xy7y25)(x2xy8y22

3、) 3 4 7 1(xyy)(xyx7) 8 3 (6y x3z2)(9y4x5z2) (4k27k)(4k24k9) (8a26a5b)( a23a9b) 3x2(2x28x2)(5x6) 9y2(9x2y)(9x2 y2) 5(3x26xyx)(4x2 xy6x) 6 6 4(xy3y28)(x2xy9y28) 5 3 1 1(xyy)(xyx1) 6 4 (5y3x2z2)(8y4x6z2) ( k27k)(2k25k9) (6a25a9b)(9a23a3b) x2(8x22x8)(9x3) y2(5x2y)(5x25y2) 1(2x2 xyx)( x27xy9x) 4 1 1(xy3y

4、26)(x2xy4y22) 7 6 1 1(xyy)(xyx4) 6 4 (9y4x7z2)(3y9x z2) (5k2 k)(2k2 k9) (2a23a4b)(9a2 a3b) 3x2(7x22x6)(4x4) 5y2(3x2y)(2x24y2) 6(6x26xyx)(6x24xy2x) 5 1 2(xy y21)(x2xy9y21) 4 3 4 8(xyy)(xyx6) 3 7 (4y8x3z2)(6y5x8z2) (7k24k)( k23k4) (8a26a2b)(9a2 a8b) 8x2(2x22x5)(3x3) 6y2(2x2y)( x26y2) 1(3x24xyx)(4x24xy

5、4x) 8 5 6(xy4y27)(x2xy3y28) 4 7 1 6(xyy)(xyx7) 7 7 (2y5x z2)(6y2x5z2) (4k29k)( k26k9) (4a26a9b)(3a28a2b) 3x2(6x24x9)(9x4) y2(3x2y)(6x22y2) 1(3x24xyx)(8x28xy4x) 5 6 1(xy9y26)(x2xy8y21) 7 4 1 5(xyy)(xyx8) 8 6 (6y3x7z2)(8y5x6z2) (4k25k)(8k23k7) (7a27a9b)(4a24a8b) 7x2(7x26x7)(8x7) 7y2(6x2y)(3x26y2) 7(4x

6、22xyx)(5x24xy5x) 8 1 4(xy9y22)(x2xy7y24) 4 5 1 1(xyy)(xyx4) 3 3 (8y6x7z2)(8y6x9z2) (3k23k)(4k23k1) (4a23a b)( a24a5b) 5x2(2x27x3)(4x6) 2y2(8x2y)(6x28y2) 1(6x24xyx)(4x26xy4x) 3 6 1(xy6y27)(x2xy y21) 5 5 7 7(xyy)(xyx2) 6 6 (8y4x z2)(3y x9z2) (2k25k)( k24k6) (2a25a5b)(8a23a8b) 4x2(6x22x6)( x5) 7y2(4x2y)(4x2 y2) 4(6x29xyx)(5x28xy5x) 3 1 5(xy3y27)(x2xy y22) 5 6 1 7(xyy)(xyx3) 8 8 (3y2x7z2)(3y4x5z2) (4k27k)(7k24k9) (5a22a8b)(2a28a5b) 5x2(5x24x9)(9x8) 6y2(6x2y)(6x26y2)