合并同类项综合练习题138.docx
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合并同类项综合练习题138.docx
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合并同类项综合练习题138
8a-5a-2a2x-8c+2x+10c
9m-8n-17m-5n+10m-16n9mn-9mn+15mn+mn
30x2y-5b2c-2x2y+2b2c6z+8z2-9z+7z2-9
4175
—z+—y-—y+—z12t2+7mn+6t2-3
3636
1
—ab+7n-2ab4xy-19a2b-15xy-5xy
6
3c-7c+9c9y-8c+4y+2c
2m-4d-10m+8d-10m+14d3xy-4xy+15xy+xy
4a2b+6y2z+16a2b-9y2z6m-6m2-4m+5m2+4
3675
—x-—t+—t-—x19n2+5ab-3n2+3
2727
1
—pq-5x+9pq8pq-9a2b-8pq-8pq
6
2b-2b+9b4x-4c+7x-7c
8a+4n+5a-11n+15a+11n4mn-9mn-20mn-mn
8x2y-2y2z-30x2y+2y2z9m+5m2-4m-3m2+2
4575
—z-—n+—n-—z5m2+5pq+5m2-9
5656
8
—ab+8x-3ab2ab+14x2y+4ab-7ab
7
6b+9b+5b4z+5e-4z-7e
3m-6n+2m-17n+20m-10n3pq+4pq+10pq+pq
2x2y+9b2c+7x2y-4b2c6t-2t2+7t+9t2-8
2175
—m-—t+—t-—m13t2+8mn-2t2-9
3838
7
—pq-6m+5pq4pq+9a2b+20pq-3pq
8
3d+6d+6d9x+9f+3x+6f
7m-9d+17m-9d-12m-11d9ab-14ab-19ab-ab
22a2b+6y2z+10a2b-9y2z9x-9x2+6x+17x2+4
6175
—z-—n+—n+—z2n2-2mn-8n2-9
5757
1
—ab-3n-2ab9ab+5a2b+9ab-19ab
3
6d+6d-4d8t-7f+2t+7f
5m-2n+13m+6n+11m-15n7xy+18xy+18xy-xy
8a2b+5y2z-26a2b-2y2z6t-9t2+2t-20t2+9
1175
—z+—y-—y+—z17t2+7ab+4t2-3
5858
3
—ab+9t-2ab9xy-13x2y+3xy-6xy
4
5a+8a+5a10x+6d+4x+8d
9m-4d+12m-15d-13m-11d8ab+6ab-12ab+ab
18x2y-2b2c+25x2y+5b2c8x+9x2+2x-16x2-4
4975
—z-—y+—y-—z9m2-6ab-8m2-6
5858
1
—pq+7m+8pq5xy-13a2b-16xy+22xy
2
6d+4d+9d5m+8a-3m+8a
9a+6c+11a-5c-17a-16c3pq-4pq+10pq+pq
10a2b+2y2z+26a2b+4y2z5z+3z2-2z+16z2-8
4675
—x+—n+—n+—x10n2-7xy-6n2+2
3737
7
—ab-3m+2ab2xy+14x2y-18xy+30xy
8
5e+7e-5e5t-7b-7t-9b
5a-7c-16a+2c-16a+10c9ab-8ab+13ab-ab
26a2b+3y2z-15a2b-8y2z6m-9m2+6m-6m2-7
1175
—m-—y-—y-—m18z2-5mn+6z2-4
2828
7
—xy+8x-6xy9pq+15x2y+18pq-20pq
8
9a-2a+2a7n-3b+7n+3b
9a-2d+6a-15d-20a+13d7xy-15xy+10xy+xy
12x2y-8b2c+28x2y-3b2c6y-6y2+2y+13y2+9
2175
—m-—y-—y+—m14n2+4ab-2n2-7
3636
4
—ab-3t-8ab6mn-8x2y+2mn-22mn
5
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