合并同类项综合练习题52.docx
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合并同类项综合练习题52
7b+7b+6b9m+9f-9m+3f
5b+6c-17b+13c+15b+12c9mn-13mn+18mn-mn
10a2b+2y2z+20a2b-6y2z5y-2y2-8y+19y2-1
1175
—m+—t-—t+—m4m2+3ab-8m2+8
5757
1
—xy-2x-2xy4ab-13a2b+15ab-19ab
7
2a+8a+3a10t+4f-6t-5f
4b-8n+10b+5n+12b-15n9mn-10mn+17mn-mn
7x2y-2y2z-15x2y-3y2z6n-8n2+7n+11n2+4
6675
—z-—n-—n+—z8y2+4pq+5y2+5
5757
6
—pq+9m-9pq2ab+18x2y-3ab-24ab
5
7d-5d+8d2t-5e+5t-10e
3m+9d+2m-14d-18m-17d5xy+15xy-16xy+xy
24a2b+2b2c-2a2b-7b2c9m-7m2-8m-6m2+1
5175
—m-—y+—y+—m12t2+8xy+2t2-2
4646
1
—pq-8m+5pq3pq+6x2y+9pq-28pq
2
7c-7c-3c3z+8e-5z-7e
5m-4d+15m+4d-18m-18d6pq+4pq-15pq+pq
26x2y-2b2c-9x2y-3b2c6y-7y2-9y+2y2-3
4775
—z-—n+—n-—z15z2-2pq+7z2+1
5858
1
—mn-4m+4mn7pq+13x2y+15pq-6pq
6
8a+7a+8a9n-2f-9n-7f
5b+2d+13b-3d+13b+11d8xy-5xy+12xy+xy
28a2b+7b2c+13a2b+6b2c4x-3x2+6x+2x2-4
1175
—m+—t-—t+—m16z2-5ab+8z2-3
3838
1
—mn+3y-9mn5mn-18x2y-20mn+10mn
2
6a+5a+9a7t+9c-7t+6c
7b-5n+17b-7n-12b+10n9mn+12mn-16mn+mn
23a2b+6b2c+24a2b-2b2c2y+6y2-4y+13y2-9
3175
—z-—y-—y+—z11y2+7pq+9y2-9
4848
1
—pq-3t+7pq6mn+9x2y+12mn-2mn
8
2f+3f+5f10t-7c+7t-6c
8m-8n-15m-12n-15m-14n6mn-16mn+16mn-mn
2a2b-6y2z+13a2b-6y2z6x-4x2+8x+18x2-3
3175
—m-—n+—n-—m14z2-7mn-9z2+7
4848
4
—mn-6x+6mn5ab+11x2y-13ab-19ab
5
2c+3c-4c4z+9a-5z+10a
2m-4d-5m-11d-11m-14d7pq+18pq+13pq-pq
28x2y+9b2c-5x2y+9b2c5m+8m2-7m+4m2+1
1175
—z+—y-—y+—z2z2-9xy-9z2+8
4646
5
—mn-5x-8mn8pq-14x2y+11pq+18pq
6
8d-2d+5d9n+3e-2n-9e
4a+2d+19a+9d-18a+19d9xy-19xy+19xy+xy
21x2y+2y2z-18x2y-2y2z4n+4n2+2n+17n2-3
3675
—x-—t-—t-—x5y2-3xy+8y2+8
4747
1
—mn+3x+3mn4ab-16x2y-8ab+29ab
2
6c+5c-8c7x-8b-6x-9b
6b-7c+10b-17c+20b-13c4ab-18ab+17ab+ab
13x2y-3y2z-2x2y-7y2z7m-4m2-5m-9m2-8
1575
—m-—y-—y+—m17m2-8mn-4m2+2
2626
1
—mn-6n+6mn7mn+17x2y+7mn+3mn
6