七年级数学下册整式的加减法计算题 276.docx

1、七年级数学下册整式的加减法计算题 276 1 (6x25xyx)(4x24xy3x) 3 1 1 (xy2y21)(x2xy3y27) 4 7 5 1 (xyy)(xyx6) 6 7 (8y9x7z2)(6y8x z2) (5k27k)(4k27k1) (3a24a6b)(9a27a8b) 7x2(7x24x3)(5x5) y2(4x2y)( x27y2) 8 (6x29xyx)( x23xy3x) 7 9 7 (xy y28)(x2xy5y22) 8 6 8 1 (xyy)(xyx7) 7 4 (7y3x3z2)( y2x7z2) (3k26k)(8k27k1) ( a29a b)(4a27

2、a8b) 3x2(4x22x5)(6x7) 2y2( x2y)( x29y2) 1 (5x25xyx)(5x25xy4x) 4 1 5 (xy3y22)(x2xy2y26) 3 4 8 6 (xyy)(xyx1) 7 5 (8y8x3z2)(7y x3z2) (3k25k)(5k29k4) (8a27a b)(9a26a3b) 2x2(9x26x4)( x5) 5y2(6x2y)(4x29y2) 5 (2x2 xyx)( x29xy9x) 6 1 6 (xy5y21)(x2xy4y27) 3 7 7 1 (xyy)(xyx3) 6 4 (2y5x6z2)(7y5x7z2) (7k28k)(7k

3、27k9) (9a25a9b)(9a26a8b) 4x2(4x22x9)(5x3) 8y2(3x2y)( x24y2) 1 (4x29xyx)( x29xy2x) 7 1 9 (xy y23)(x2xy3y23) 6 8 2 1 (xyy)(xyx9) 3 5 ( y6x7z2)(2y7x3z2) ( k24k)(9k27k6) (6a29a2b)( a25a b) 6x2(4x29x6)(7x6) 6y2(4x2y)(9x28y2) 8 (9x25xyx)(8x23xy5x) 7 1 6 (xy7y23)(x2xy9y29) 8 7 5 1 (xyy)(xyx6) 4 8 (6y8x4z2)( y9x8z2) (6k23k)( k2 k5)