人教版初二数学上册多项式乘多项式练习题精选49.docx

1、人教版初二数学上册多项式乘多项式练习题精选49 (4x7)(2x1) (x6y)(xy) (3xy)(x2xyy2) (m4n)(4m2n) (a4)2 (2a6b)(a8b) (x27)(4x5) (x2x2)(x3) (x3)(x3) (x6)(x6) (y4)(y1) (y3)(y3) (x4)(5x5) 7a(4a4b) (4x6y)(4x) 5 1 (ab33ab)ab 3x(4x4)4x(x3)3x(x2) 4 5 (x9)(x4) (x7y)(2x6y) (x2y)(x22xyy2) (2mn)(3m3n) (a4)2 (a2b)(4ab) (3x27)(x7) (2x23x2)

2、(2x3) (x2)(x2) (x5)(x3) (y2)(y3) (y3)(y2) (x4)(4x2) 7a(4a8b) (6x9y)(3x) 3 1 (ab23ab)ab x(2x4)x(4x1)4x(3x3) 4 3 (x9)(3x2) (x2y)(xy) (2xy)(x22xyy2) (2mn)(m8n) (2a1)2 (ab)(ab) (2x29)(2x5) (2x22x1)(x3) (x1)(x2) (x1)(x2) (y2)(y1) (y2)(y2) (9x4)(2x7) 6a(3a2b) (8x2y)(5x) 6 1 (ab23ab)ab2 4x(2x2)2x(x4)3x(x2)

3、 5 6 (2x1)(2x3) (2x3y)(xy) (xy)(x2xyy2) (m7n)(4m5n) (a3)2 (3a7b)(3a8b) (x28)(x6) (x24x2)(x2) (x3)(x2) (x2)(x1) (y1)(y2) (y1)(y2) (x3)(3x8) 4a(3a6b) (4x9y)(9x) 5 1 (ab24ab)ab2 x(x2)x(2x2)x(4x3) 6 5 (x7)(2x6) (4xy)(xy) (xy)(x2xyy2) (3mn)(mn) (4a2)2 (a5b)(3ab) (x21)(x4) (3x23x3)(x1) (x1)(x3) (x5)(x1) (

4、y1)(y2) (y3)(y2) (5x2)(2x4) 3a(2a2b) (4x4y)(4x) 5 1 (ab32ab)ab3 x(2x2)x(x3)x(x3) 4 5 (2x4)(x9) (4x3y)(4x6y) (xy)(x23xyy2) (3mn)(2m3n) (3a2)2 (2a5b)(3a7b) (3x24)(x5) (3x24x1)(x2) (x1)(x1) (x5)(x1) (y3)(y2) (y3)(y1) (x3)(4x8) 5a(9a2b) (8x5y)(2x) 4 1 (ab22ab)ab x(x2)2x(x3)2x(x4) 3 4 (x5)(2x3) (2xy)(3x9

5、y) (3xy)(x22xyy2) (mn)(4m8n) (3a4)2 (2ab)(ab) (x22)(2x2) (x24x1)(2x3) (x3)(x2) (x2)(x3) (y4)(y2) (y2)(y3) (9x2)(4x4) 5a(3a6b) (2x7y)(5x) 7 1 (ab24ab)ab2 2x(x4)x(3x1)4x(4x3) 6 7 (x2)(4x8) (x4y)(4x5y) (2xy)(x2xyy2) (mn)(m5n) (a4)2 (a7b)(3ab) (x28)(x4) (x2x1)(2x1) (x1)(x2) (x1)(x4) (y1)(y2) (y4)(y1) (x

6、3)(8x8) 7a(8a6b) (7x5y)(3x) 4 1 (ab25ab)ab 3x(x1)x(2x4)4x(2x1) 5 4 (4x1)(x9) (xy)(2x8y) (xy)(x2xyy2) (2mn)(mn) (a1)2 (a9b)(3a8b) (x27)(4x3) (2x22x3)(2x3) (x3)(x1) (x4)(x6) (y3)(y2) (y2)(y2) (5x3)(8x1) 7a(8a2b) (4x4y)(4x) 6 1 (ab32ab)ab 2x(x2)2x(x1)x(2x4) 5 6 (4x6)(x5) (x8y)(3xy) (3xy)(x2xyy2) (4mn)(

7、4mn) (4a2)2 (4a5b)(2ab) (x29)(x1) (x2x3)(3x2) (x2)(x3) (x4)(x4) (y1)(y3) (y3)(y3) (x4)(8x7) 8a(9a6b) (5x7y)(6x) 6 1 (ab23ab)ab2 2x(2x2)x(x3)3x(3x2) 5 6 (2x8)(x7) (xy)(x4y) (3x3y)(x23xyy2) (3m2n)(2m2n) (2a2)2 (ab)(3ab) (3x21)(x6) (x2x3)(3x1) (x1)(x2) (x2)(x2) (y1)(y2) (y4)(y3) (x2)(6x3) 2a(6a8b) (2x4

8、y)(9x) 2 1 (ab34ab)ab x(x3)x(x1)4x(3x1) 3 2 (x6)(4x5) (x7y)(4x8y) (x2y)(x2xyy2) (m6n)(mn) (a1)2 (2a2b)(3ab) (x26)(4x2) (3x22x3)(x2) (x4)(x3) (x5)(x3) (y3)(y3) (y3)(y2) (x3)(5x7) 7a(8a4b) (3x3y)(2x) 4 1 (ab26ab)ab 2x(3x3)2x(2x4)2x(2x2) 3 4 (x3)(3x2) (xy)(x3y) (x2y)(x2xyy2) (2m2n)(4m9n) (3a3)2 (ab)(4a

9、9b) (4x23)(x9) (x22x1)(x2) (x1)(x1) (x6)(x6) (y4)(y2) (y1)(y1) (x2)(9x7) 8a(9a3b) (7x3y)(7x) 3 1 (ab32ab)ab 2x(x2)x(3x4)x(3x1) 4 3 (4x1)(x5) (3x2y)(xy) (x3y)(x23xyy2) (m2n)(2m7n) (4a3)2 (2ab)(ab) (2x29)(x4) (2x22x1)(x2) (x1)(x2) (x2)(x6) (y1)(y1) (y1)(y2) (7x2)(3x9) 5a(6a4b) (3x5y)(2x) 2 1 (ab36ab)ab2 x(x2)3x(3x2)4x(x1) 3 2 (x1)(3x2) (xy)(xy) (x3y)(x22xyy2) (mn)(m6n) (a2)2 (ab)(ab) (2x27)(4x1) (x2x2)(x3) (x2)(x3) (x3)(x2) (y1)(y1) (y1)(y2) (x3)(2x3) 7a(2a9b) (5x9y)(9x) 7 1 (ab23ab)ab2 x(x1)4x(4x4)3x(2x4) 6 7