初一数学下册单项式乘以多项式练习题精选 20.docx

1、初一数学下册单项式乘以多项式练习题精选 20 4ab(5ab5a2b2) 9x(8x26x2) 3x(7x28y2) 3ab(3a2b7a2b2) 5 9a(ab5b2) 6ab(9ab5a2b2) 6 8 7 (a3b37a3b2)ab 5x(9x7y) 7 8 3 8 (x2y24x3y3)xy2 2x(3x26x26) 4 7 3ab(3ab4a2b) 5x(8x7x28) 5x(6x25y) 3ab(3a2b25ab) 1 9a(a2b5b2) 7ab(9ab27a2b) 7 1 4 (a3b38a2b3)ab 8x(7x23y2) 4 3 1 7 (x2y23x2y2)xy2 6x(

2、6x5x8) 3 8 9ab(5ab8a2b2) 2x(9x29x24) 5x(9x26y) 2ab(5a2b4a2b2) 6 4a(ab25b) 5ab(8a2b5a2b2) 7 6 9 (a2b39a3b3)ab 7x(4x24y2) 7 8 1 6 (x2y36x3y2)xy 2x(2x2x5) 5 5 6ab(5ab3ab) 7x(5x7x24) 3x(6x3y) 3ab(2ab6ab) 7 8a(a2b27b) 6ab(9a2b5ab2) 8 6 7 (a2b33a2b2)ab 6x(7x6y) 5 6 8 2 (x3y23x3y3)xy 8x(4x8x28) 7 3 7ab(7ab

3、25ab) 6x(2x28x2) 8x(5x27y) 4ab(6ab7a2b) 1 9a(ab27b2) 5ab(8a2b26ab2) 8 5 3 (a2b37a2b2)ab 7x(2x24y2) 6 4 9 3 (x3y24x3y3)xy 2x(2x22x1) 8 4 2ab(4a2b26ab2) 7x(9x3x26) 9x(4x5y) 5ab(7a2b8a2b) 1 5a(a2b4b) 4ab(3a2b26a2b) 7 1 2 (a2b36a3b2)ab 4x(8x5y) 7 3 4 6 (x2y26x3y3)xy2 9x(6x27x6) 3 5 2ab(5a2b29ab) 6x(8x9x

4、5) 9x(2x29y) 4ab(7ab4ab2) 9 4a(ab2b) 7ab(4ab8ab) 8 7 9 (a2b26a2b2)ab 9x(6x23y2) 8 8 9 6 (x2y32x3y2)xy 6x(8x28x4) 8 5 4ab(8a2b6ab) 4x(9x26x29) 6x(3x3y2) 9ab(4a2b25ab2) 6 7a(ab9b) 5ab(5a2b26ab) 5 6 8 (a3b25a3b2)ab 5x(6x9y2) 7 7 8 1 (x2y23x3y3)xy2 6x(7x3x1) 7 6 5ab(7ab24ab) 7x(5x22x24) 7x(7x26y2) 8ab(8

5、a2b22ab2) 8 8a(a2b24b) 6ab(7ab26ab) 7 4 6 (a2b24a3b2)ab 8x(9x28y) 5 7 1 4 (x3y27x2y3)xy2 4x(7x6x23) 8 3 6ab(3ab26a2b2) 5x(3x7x22) 6x(4x24y2) 5ab(6a2b24ab) 6 8a(ab26b2) 7ab(9ab22ab) 7 6 7 (a2b37a3b2)ab 9x(2x22y) 5 6 4 1 (x3y38x2y2)xy2 4x(7x5x8) 3 4 8ab(5ab6ab2) 3x(3x4x21) 6x(8x23y) 6ab(3ab9ab) 1 2a(a

6、b27b2) 7ab(6ab9a2b) 6 5 1 (a3b24a2b3)ab 5x(7x26y) 6 3 6 7 (x3y24x3y3)xy 6x(8x22x29) 7 8 6ab(2ab22a2b) 7x(5x9x4) 8x(4x23y2) 3ab(4ab7a2b2) 3 7a(ab2b2) 8ab(2ab3ab2) 4 7 7 (a3b35a2b2)ab 8x(3x22y) 8 8 7 1 (x3y32x3y2)xy2 8x(4x9x2) 6 3 6ab(9ab26ab2) 6x(8x23x25) 7x(2x25y2) 3ab(9a2b3a2b) 4 3a(ab5b) 3ab(3ab22

7、ab2) 3 3 1 (a3b22a2b2)ab 5x(2x5y) 4 8 7 6 (x2y27x2y3)xy 2x(2x8x2) 6 5 3ab(5ab7ab) 7x(8x22x3) 9x(5x6y) 4ab(9ab5a2b2) 1 7a(a2b9b2) 3ab(9ab28a2b) 6 7 3 (a2b28a2b3)ab 3x(7x29y) 8 4 5 9 (x3y22x3y2)xy2 5x(7x9x1) 6 8 5ab(4a2b4a2b2) 4x(6x23x7) 8x(8x8y2) 8ab(5ab7ab2) 7 6a(ab27b2) 4ab(2ab25a2b) 6 6 1 (a2b39a2

8、b2)ab 5x(7x25y2) 7 8 1 8 (x2y24x3y2)xy 5x(9x24x25) 3 7 7ab(3ab5ab2) 8x(3x4x26) 2x(7x7y2) 7ab(6a2b3ab) 2 7a(a2b23b2) 8ab(7ab5a2b) 3 1 2 (a2b35a3b3)ab 5x(4x24y2) 3 3 5 1 (x3y24x2y3)xy2 8x(6x22x8) 4 6 6ab(3ab28ab) 8x(5x23x6) 7x(7x28y) 9ab(9a2b8a2b2) 5 9a(ab22b) 6ab(5ab28a2b2) 6 3 1 (a2b24a2b2)ab 7x(3x2

9、6y) 4 5 7 1 (x2y22x3y3)xy 4x(6x7x8) 6 4 9ab(3a2b29a2b2) 4x(5x27x8) 4x(4x2y) 5ab(6a2b7ab2) 6 4a(ab7b) 8ab(4ab4a2b2) 5 1 7 (a3b39a2b2)ab 2x(5x22y2) 4 6 1 7 (x2y37x2y3)xy 9x(4x24x22) 4 8 8ab(7a2b23ab2) 6x(6x6x2) 2x(5x4y) 4ab(6ab26a2b2) 7 6a(ab24b2) 2ab(4ab5ab2) 8 2 2 (a2b37a3b3)ab 4x(2x8y) 3 3 4 2 (x2y32x2y3)xy 7x(4x26x26) 5 3