七年级数学下册整式的加减法计算题 37.docx

1、七年级数学下册整式的加减法计算题 37(6a24a5b)(8a27a5b) x2(4x2 x2)(2x4) 9y2(2x2y)(2x29y2) 1 (5x23xyx)(3x27xy7x) 5 1 5 (xy y29)(x2xy7y24) 5 4 1 6 (xyy)(xyx9) 5 7 (6y x z2)(6y2x3z2) ( k29k)(5k28k6) (5a27a3b)(4a28a3b) 9x2(8x24x4)(2x7) y2(8x2y)(9x29y2) 1 (4x24xyx)(6x29xy6x) 5 5 4 (xy4y22)(x2xy9y26) 4 3 1 1 (xyy)(xyx9) 6

2、4 (8y3x5z2)(5y9x7z2) (9k28k)(7k26k3) (7a24a7b)(6a29a5b) 2x2(3x24x6)(8x5) 5y2( x2y)(4x24y2) 1 (3x2 xyx)(2x23xy2x) 6 4 7 (xy y26)(x2xy2y24) 5 6 8 1 (xyy)(xyx1) 7 6 (2y9x8z2)(4y7x6z2) (8k22k)(6k23k4) (2a28a6b)(8a29a5b) 2x2( x23x5)(5x3) 3y2(9x2y)(8x26y2) 1 (4x29xyx)(5x29xy8x) 3 5 4 (xy y24)(x2xy4y27) 4

3、5 7 1 (xyy)(xyx5) 8 7 (8y x3z2)( y3x7z2) (2k24k)(3k2 k3) (3a26a3b)(6a2 a8b) 2x2(7x28x7)(3x7) 5y2(6x2y)(8x28y2) 1 (3x26xyx)(4x29xy3x) 3 5 6 (xy4y27)(x2xy4y26) 6 5 5 5 (xyy)(xyx4) 4 4 (9y7x3z2)( y9x2z2) (2k23k)(4k26k2) (7a29a6b)(8a2 a b) 8x2(9x26x8)(9x9) 3y2(6x2y)(5x28y2) 1 (3x23xyx)(3x24xy3x) 7 1 9 (xy3y21)(x2xy4y25) 8 8