合并同类项综合练习题10.docx
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合并同类项综合练习题10.docx
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合并同类项综合练习题10
7a+6a+2a5y-8d-8y+2d
8a-3n-3a-4n-12a-20n7xy-4xy+18xy+xy
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—z-—t-—t-—z12t2+8pq+2t2-3
2828
1
—pq+8n-4pq4xy+17a2b+8xy+3xy
4
7a+7a+6a10x-6c-7x+2c
4m+9d-11m+13d-15m+20d7mn-16mn+10mn+mn
19a2b-6b2c+6a2b-8b2c2t-7t2-3t-7t2-7
3775
—x-—t-—t-—x17n2-9pq+6n2-9
2626
1
—ab-2z-8ab5pq+14a2b+2pq+29pq
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7b-6b+8b10n-8a+8n+4a
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21a2b-5b2c-26a2b-4b2c4z+4z2+7z-7z2-4
1175
—z+—n+—n-—z19z2+3mn-2z2+4
2828
1
—ab+7y+2ab3xy+18a2b-13xy+10xy
3
7b+9b-8b5m+5b-4m-6b
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12x2y-9y2z-6x2y-2y2z4y-9y2+8y-6y2+6
4775
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5656
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7c-9c+8c9z+8c+6z-3c
5m-9d-15m+18d-13m+12d2xy-3xy-18xy+xy
5x2y-5y2z-27x2y+9y2z2t-6t2-8t-15t2+2
3975
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4848
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26a2b-5b2c-12a2b+9b2c9y-4y2-6y+7y2+4
1175
—m-—n-—n+—m20n2+9mn-7n2-4
3838
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—mn+8m+6mn7pq+2a2b-7pq+13pq
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6b+6b+8b4t+6e+2t+5e
5a+4d+6a+14d-16a+14d3xy+13xy+15xy+xy
5a2b-5b2c-21a2b+5b2c4n-5n2+9n+8n2+9
3975
—x+—y-—y-—x20n2+7mn-8n2-4
2828
2
—xy+2y-6xy3mn+11a2b-4mn-3mn
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6a+7a+7a4t-2e-8t+3e
2b-3n+13b-10n-12b-19n4mn-18mn+16mn+mn
13a2b-6b2c+18a2b+6b2c7t+9t2-9t-19t2+5
1575
—m+—y-—y+—m20x2-7mn-7x2-7
2626
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—xy-8x+3xy4pq-10x2y-9pq+10pq
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5e+8e+3e4m+6c-4m-5c
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25x2y-6y2z-13x2y+7y2z3n-4n2+7n+4n2+9
4175
—z-—n+—n+—z19y2-3xy-9y2+4
3737
5
—mn-8y-5mn3pq-12x2y-15pq-20pq
4
6c+9c+5c7m+6c-2m+8c
4a-4d+15a-5d+17a-17d5pq-15pq-19pq-pq
15a2b-4b2c-20a2b-3b2c9m+7m2+7m-7m2+9
2175
—z+—y+—y-—z11n2-4xy-4n2+5
3737
1
—mn+4z+2mn5pq+19x2y-12pq-19pq
3
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