合并同类项综合练习题38Word文件下载.docx
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3737
1
—xy+9n+5xy7mn+3a2b-6mn+24mn
5
3f-8f-6f2n+9b+6n-6b
7b+9d+19b+19d-18b+16d8xy+11xy+10xy-xy
4x2y+5y2z-7x2y+8y2z8t+7t2-6t-3t2+3
4175
—m-—n+—n+—m11z2-2ab-4z2-8
—mn-3t-9mn8mn-4a2b-17mn-12mn
2
2f-5f-9f4n-8f+5n+5f
7m-3n+11m-12n+16m+10n7xy-8xy-15xy+xy
21x2y+6y2z+3x2y+5y2z6z+7z2-5z+10z2-9
1675
—z-—t-—t-—z19t2-2mn+2t2-8
4747
4
—ab+7t+5ab9ab+6a2b+11ab+5ab
3
3b-7b-7b6z+6a-9z-3a
2b-2c-12b-12c-13b-14c5ab+2ab+10ab+ab
29x2y+2y2z-15x2y-4y2z6m-5m2-3m+4m2-2
1875
—z+—y-—y-—z9z2-2ab-7z2-1
2727
—ab-6x-4ab8ab-13x2y+19ab+10ab
2d+7d+6d10y+2a-9y+2a
9b-8c+4b+4c-11b+14c6mn+16mn-17mn-mn
14x2y+9b2c-8x2y-9b2c2m+7m2-3m+4m2-7
5975
—m+—t-—t-—m8n2-5ab-2n2-4
4848
—xy+5x-6xy7xy+13x2y+2xy+7xy
6
3b+4b-8b2m+9d+9m-7d
8a-5d+2a-2d+10a-15d8pq-18pq-18pq+pq
24x2y+8y2z+24x2y+9y2z2y-7y2-7y+13y2+4
3775
—z+—n-—n+—z7n2+2xy-4n2+6
—ab-9m-5ab7ab+12x2y+6ab-5ab
9f-9f+7f5z+8a+3z+5a
2b-3c+10b+4c+19b-10c3mn+18mn+20mn+mn
28a2b-2y2z+21a2b+8y2z2x-4x2+4x-11x2-3
1975
—z-—n-—n-—z7y2+2ab+9y2+6
2828
—mn+5m+2mn6mn-6x2y-15mn-25mn
7d-8d-3d8y-8b-2y+5b
5b-2c-16b-12c+16b+13c3ab-10ab-15ab+ab
29x2y+2b2c+26x2y+3b2c7x+6x2-7x-13x2+4
2175
—m-—y+—y+—m13y2+5ab-4y2-1
3838
—ab-3y-4ab8mn+10a2b+14mn+26mn
7
7a+9a-3a10t-7f-6t+8f
7m-7c-7m+15c+20m-12c4pq+11pq-19pq+pq
24x2y-5y2z+24x2y-2y2z6n+7n2-4n+5n2+9
—z-—n-—n-—z11n2+2ab+5n2+9
—pq-4m+2pq7mn-14a2b+15mn-6mn
2c+9c-9c7m-6b-5m-4b
7b+5c-15b+7c-10b+15c2pq+10pq+19pq-pq
3a2b+7b2c+25a2b+4b2c8z+6z2+5z-2z2-7
1575
—z-—n-—n+—z17z2+3ab+6z2+7
2626
—pq+7z+3pq9xy+6x2y+15xy-3xy