合并同类项综合练习题51.docx
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合并同类项综合练习题51
8c-4c+9c6y-8e+5y+2e
2m+4d+18m-12d-16m+18d9mn-8mn+12mn+mn
6x2y-2b2c-25x2y+4b2c2m-3m2-4m+6m2+9
3975
—z+—n+—n-—z7y2+8ab+8y2-7
2828
7
—mn+7x+4mn6mn+7a2b-17mn+23mn
8
5c-6c+2c10m-4d+8m+7d
3m-8d-15m+18d+19m+17d5xy+16xy+11xy-xy
28a2b+3y2z-21a2b-3y2z9z-7z2-2z-17z2-9
3975
—x+—t-—t-—x13z2-9mn+7z2-7
2828
1
—ab+8m-7ab7pq+15a2b+8pq+21pq
2
8f-9f-7f2x+9c-8x+3c
5m+9n-19m-2n+20m-17n5pq-2pq+17pq-pq
29a2b+5y2z+9a2b-9y2z8t-5t2-2t+17t2+4
6175
—x-—t-—t+—x9y2-8xy+9y2+8
5858
1
—pq-2n-9pq4pq+15x2y-8pq-18pq
7
7b-9b+2b5x-8c+8x+3c
4m+3n-19m+18n+10m-13n4pq-7pq-13pq+pq
9a2b+9b2c-16a2b+2b2c2n+9n2+5n-2n2+3
3675
—z+—t-—t+—z16x2+4ab-5x2+6
2727
3
—ab-6m-3ab3ab-16a2b-4ab-9ab
2
6a+9a+3a3y+9f-9y+10f
2b-7n+14b-8n+14b-17n2pq-7pq-14pq+pq
10a2b-6y2z-3a2b-3y2z8y+2y2+6y-12y2-1
2875
—x-—n-—n-—x10t2-5xy+2t2-9
3737
1
—xy+7n-4xy7ab-13a2b-9ab+20ab
6
9d+5d-2d9m-8e-6m-8e
6a-9c+17a-14c-16a+17c2pq-9pq+18pq+pq
6a2b-8b2c-6a2b-9b2c6z-8z2-4z-18z2-7
3575
—z+—n+—n-—z15t2+9xy-2t2-1
4646
9
—pq-2n+3pq6pq+14x2y-6pq+27pq
8
2c-5c+6c6y-2b+5y+10b
2m+9n+10m+15n-20m-12n5ab-2ab-16ab-ab
28a2b+3b2c-25a2b+8b2c4n+7n2+3n-18n2+1
3775
—m+—t-—t-—m16m2+5pq-8m2-6
2828
7
—ab+9t+7ab9xy-10x2y+4xy+29xy
8
5f+7f-2f3n-3e+2n+8e
2a-7d+20a+10d-17a+19d3pq+12pq+16pq+pq
20a2b-9b2c+13a2b-6b2c5n-2n2-7n+17n2-3
5775
—x+—n+—n-—x15n2-8pq+5n2-1
4646
5
—xy-3m+5xy9xy-16x2y-4xy+4xy
4
7f+4f+2f6x+5d-5x-9d
2a-4n-17a-9n-13a+15n9xy+7xy+18xy-xy
23a2b-2b2c-11a2b-8b2c3z+8z2+9z-9z2-5
1175
—x+—t+—t+—x10t2-3mn+2t2+8
2626
1
—pq+2n-4pq3pq-12x2y+18pq-16pq
2
5c+4c-7c6m-8d+5m+10d
2b+8n-4b+14n-16b-11n2ab-6ab-18ab+ab
9a2b+6y2z-2a2b-7y2z2y+2y2+2y-13y2+6
1675
—z-—y+—y+—z18t2+6pq-9t2-5
3737
2
—pq+9t-2pq2xy-9x2y-18xy+27xy
3