合并同类项综合练习题29.docx
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合并同类项综合练习题29.docx
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合并同类项综合练习题29
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—z+—t-—t-—z16y2-3ab+4y2-9
3737
5
—xy-5z-6xy9ab-20a2b-14ab-5ab
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8b+5n+20b-10n-14b+19n2pq+16pq+17pq-pq
22a2b-5b2c+5a2b+8b2c2z+9z2-2z+16z2-8
1675
—m+—y-—y+—m12z2-2mn+7z2-4
2727
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8a-6a+6a2y-9a+4y+6a
7a+7d+2a-6d-13a+12d2ab+7ab+16ab-ab
19x2y-2b2c+11x2y+9b2c4n-4n2-6n-9n2+8
1575
—x+—y-—y-—x18z2-2pq-6z2+1
2626
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—mn+6n+4mn4pq-5a2b-16pq+7pq
7
8c+6c+8c9t+9e-9t-8e
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3775
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4848
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7f-9f-8f8t+8e-8t+6e
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15x2y+4y2z-14x2y-4y2z8t-3t2+8t+15t2+3
2175
—z-—n-—n-—z17m2+9mn-9m2-9
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8d-5d+5d9m-8d+3m-5d
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4x2y+2b2c-5x2y+7b2c9t+4t2+7t-17t2-7
6575
—z-—n-—n+—z4x2-4pq+5x2+8
5656
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5975
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4848
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3d+7d-3d5m-2b+4m-10b
9m+3d+16m+13d+20m+15d3pq+4pq+18pq-pq
19a2b+4b2c-21a2b+4b2c4x+5x2+4x+10x2+9
3675
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4a-9d-2a+5d-11a+17d6mn-2mn-12mn-mn
14a2b-2y2z+3a2b+4y2z8n-2n2+2n+5n2+4
1875
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5757
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