合并同类项综合练习题63Word下载.docx
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2828
5
—mn-2y-2mn2ab-5a2b+9ab+20ab
6
5d-4d-2d6n+4c+4n+10c
3m-2n-17m+8n-18m+16n5pq+9pq-14pq-pq
16a2b+8b2c+7a2b+7b2c6y-9y2+9y-9y2-6
4775
—x-—y+—y+—x14n2-2mn-8n2+3
5656
1
—mn+9x+3mn2mn+6x2y-18mn-10mn
7
2a-9a+3a6n+6a+2n-3a
9a+7c+8a+11c+19a-11c4ab-17ab-15ab-ab
15a2b-8b2c-13a2b+6b2c2n+5n2+9n-9n2+5
1175
—x+—y+—y-—x8x2-7mn+3x2+7
3737
—pq+5m-8pq8pq-17a2b+15pq-13pq
8
2c-7c+6c5y+6e+2y-8e
6a-8n-19a+20n+13a+18n9mn-6mn-12mn+mn
7a2b+6b2c-5a2b-3b2c3t-2t2-6t-19t2+3
—m+—n-—n-—m3y2-8pq+2y2-9
3636
4
—mn+6t-5mn4ab+4a2b-3ab-13ab
3
4f-5f+6f9n-9f+8n+7f
9b-2d+8b+11d-11b+11d6mn-5mn-10mn-mn
23a2b+2y2z+14a2b-8y2z8y-6y2+8y+7y2-5
4575
—x-—n-—n+—x5z2-3pq-9z2+2
9
—xy-6t-8xy2xy+4x2y+4xy+27xy
5e+8e+3e3m+3f+3m+3f
6b+4n+15b+3n-15b-19n2ab-12ab+14ab+ab
12x2y+2y2z-17x2y+2y2z9t-2t2-6t+8t2+8
2975
—z-—y+—y-—z16t2-8mn+2t2-2
3838
—pq-3n-9pq7xy+16x2y+19xy+26xy
4f+4f+6f10t-3b+6t-4b
6a-3c+13a+6c+18a+10c9ab+15ab-19ab+ab
16a2b+6y2z-14a2b-9y2z7m-2m2+4m+6m2+8
—x+—n+—n+—x14z2-5pq-6z2+8
4747
—pq-6y+7pq6mn-6a2b-19mn+30mn
4d-8d+7d8z-5b+3z+3b
8m-6c-5m-16c+19m-20c8mn-11mn+19mn-mn
16a2b-5y2z-28a2b+9y2z7m+4m2+9m-5m2+3
1775
—x+—n+—n+—x9m2-9ab+8m2+7
2626
—xy+2z-9xy2mn-15a2b-2mn-11mn
3d-9d+2d2x+2b+3x-7b
6b+8d+2b-3d-19b+10d3pq+11pq-12pq-pq
25x2y-4b2c-2x2y+2b2c8z+7z2+5z+9z2-6
6775
—x+—y+—y-—x5z2+7mn+4z2+8
—xy+7y+8xy7xy-3a2b-8xy+30xy
2
6c-9c-3c5z+6a-7z-9a
2a+7n+7a-14n+18a-16n7xy-3xy+16xy+xy
20a2b-9y2z+5a2b-5y2z9n-5n2+5n-7n2-9
1875
—z-—t+—t-—z10t2+9ab-2t2-2
2727
—xy+9m-9xy2pq-19x2y+11pq+24pq