初中数学七年级下册计算题精选80.docx

1、初中数学七年级下册计算题精选80 2 5(xyy)(xyx5) 3 4 (4y9x2z2)(3y4x5z2) (5k27k)(6k25k2) (2a23a9b)(3a28a b) 8x2(3x28x2)(6x3) y2(7x2y)(8x24y2) 8(7x28xyx)(7x27xy5x) 7 1 1(xy3y26)(x2xy9y23) 4 5 3 1(xyy)(xyx1) 4 6 (7y5x2z2)(4y4x z2) (9k28k)(2k29k8) (7a27a8b)(8a27a2b) 9x2(8x29x3)(6x8) 4y2(3x2y)(6x22y2) 6( x22xyx)(5x26xy x

2、) 5 7 7(xy7y25)(x2xy8y29) 6 8 1 5(xyy)(xyx3) 5 4 (4y4x5z2)(2y6x4z2) (6k25k)( k2 k6) (2a29a9b)(2a24a3b) 2x2(4x29x9)(6x8) y2(3x2y)( x23y2) 8( x25xyx)(9x27xy9x) 7 1 6(xy4y23)(x2xy7y21) 6 7 1 5(xyy)(xyx4) 6 4 (8y9x5z2)(2y4x7z2) (3k25k)( k23k5) ( a28a4b)(4a22a6b) 4x2( x25x8)(7x8) 4y2(4x2y)(4x29y2) 9(9x26

3、xyx)(7x26xy7x) 8 4 1(xy y26)(x2xy4y21) 5 6 4 1(xyy)(xyx6) 3 3 (7y4x8z2)(5y4x7z2) (7k24k)(6k29k7) (8a23a9b)(8a26a8b) 8x2(2x25x2)(4x1) 6y2( x2y)(7x26y2) 1(5x27xyx)(9x25xy9x) 5 9 8(xy6y28)(x2xy9y28) 8 7 2 4(xyy)(xyx8) 3 5 (8y3x8z2)(5y3x7z2) ( k29k)(5k2 k6) (2a27a2b)(4a29a4b) 6x2(7x27x4)(9x7) 9y2(9x2y)( x22y2) 9( x25xyx)( x25xy9x) 8 1 4(xy9y26)(x2xy7y29) 5 3 4 4(xyy)(xyx4) 5 3 ( y7x8z2)(2y x7z2)