合并同类项综合练习题47Word格式.docx
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3838
1
—ab+7y+7ab6pq+7a2b-17pq+27pq
2
8a+6a-3a3n-8d-3n+5d
3b+5d-5b+6d+15b+19d7mn+11mn+16mn+mn
17a2b-5y2z-20a2b+2y2z7n+7n2-9n-17n2+3
4775
—m-—y+—y-—m9x2+7mn-7x2-2
5858
7
—mn+8z+7mn9mn-19x2y+16mn-25mn
8
3f+9f-7f4z-2d-7z+6d
4a+7c+17a+9c-18a-20c2mn-7mn-17mn-mn
19a2b+4b2c+12a2b-3b2c5y+4y2-8y-11y2+6
2875
—x-—y+—y+—x17z2-8pq+6z2+3
3737
6
—ab+4y+3ab5ab-19x2y-17ab+4ab
4e+8e+4e5m+3e+5m-8e
2m+8n-4m+17n-10m-20n2ab-12ab+17ab-ab
15a2b-9y2z-6a2b+2y2z9z+5z2-3z+20z2+9
1575
—x+—y+—y+—x19z2-5xy+3z2+2
5656
—mn-7z+3mn8mn+4a2b-6mn-8mn
3c+5c+5c5m+3a-6m+2a
7a-7d+17a+6d-15a+13d6pq+4pq+10pq-pq
23x2y-3y2z-8x2y+8y2z8t+8t2+5t+4t2+1
3775
—m+—t+—t-—m16z2+9xy+3z2-4
2828
—xy-8n+7xy3mn-3a2b+13mn+19mn
3d+9d-8d5x+8c-8x-5c
7a+3c-6a-15c+19a-13c4mn-16mn-13mn+mn
16x2y+5b2c+26x2y+8b2c4y-6y2+3y-8y2+8
4175
—z+—n-—n-—z4t2-3xy+2t2-1
5757
—mn-9x+2mn8pq-18a2b+7pq+16pq
2a-4a-5a7n+7c+4n+8c
7a+3c-20a-9c+12a-17c5mn-11mn+20mn+mn
6a2b+8b2c+15a2b+6b2c9y+8y2+3y+18y2-3
3675
—z+—t-—t-—z13t2+7mn-5t2+8
2727
3
—pq-2t+3pq3ab-19a2b+14ab+14ab
6a-5a+9a10t+8f+4t+9f
3a+3c-3a+17c+10a+18c7ab+2ab-13ab-ab
5a2b-7y2z-2a2b-6y2z3y-6y2+4y+17y2-3
1175
—z-—n+—n-—z20t2-9mn+5t2+7
—xy+9n-6xy4ab+14x2y-18ab+3ab
8e-6e-2e7m-5a+9m-4a
5m-4d+6m-13d-12m-12d7xy+4xy+10xy+xy
15x2y+4y2z-7x2y+8y2z3z-3z2+5z+15z2+1
—x-—t+—t-—x3n2+7mn-7n2+6
9
—pq-9x-4pq3ab+18x2y+17ab+2ab
7a-3a+3a8m-3b-9m+3b
3b+5n-6b+4n+11b+17n7xy+8xy+15xy+xy
22x2y+2b2c-27x2y-6b2c9z+7z2+3z-3z2+6
1875
—z-—t-—t-—z7m2+5ab-7m2-4
4
—ab-2n+9ab6ab-11a2b-3ab+3ab