合并同类项综合练习题77.docx
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合并同类项综合练习题77.docx
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合并同类项综合练习题77
9a+9a+9a6t+2e+3t+9e
4a-9d+15a-16d-16a-15d9pq+16pq+17pq+pq
13x2y-6y2z-3x2y+6y2z6t+5t2-4t-4t2+3
1775
—x+—n-—n+—x10x2+8xy+6x2+1
5858
5
—ab+2n+9ab4pq+4a2b+9pq-30pq
4
3d-3d-7d3z-9b+4z+9b
7b-9c+3b-16c-11b+15c6pq-8pq-19pq-pq
21x2y-2y2z+11x2y+4y2z9m-6m2+9m-19m2+8
6175
—z-—y-—y-—z14m2+6mn+9m2+3
5757
1
—pq-4n+9pq7mn-12x2y+12mn+21mn
8
9b+6b-9b10n+9c-7n-8c
9m+2n-12m+5n+19m-17n5mn+10mn-14mn+mn
23x2y+9y2z-27x2y+4y2z4z+5z2+5z+2z2+2
1175
—m-—y+—y+—m19n2+8ab+7n2-2
3737
3
—pq+2z+3pq5mn+3a2b+15mn-30mn
2
6c-7c-2c5y-7b-5y+8b
2b+9c-13b+14c-20b-15c7pq-3pq+16pq-pq
23x2y-7b2c+4x2y+7b2c2z+6z2+9z+2z2-4
1675
—x+—t+—t-—x16z2-7xy-9z2-2
2727
2
—ab-6x-8ab9mn+3x2y-7mn+16mn
3
8b+6b-8b10z-6f+8z+5f
4m-9d-19m+17d-14m+10d5ab+18ab-16ab+ab
4a2b+6b2c-18a2b-6b2c7m-5m2+4m-12m2+9
3775
—z-—t+—t+—z7y2+7mn-9y2+4
2828
6
—mn-6n-2mn5ab-19a2b+18ab+4ab
5
6c+4c+3c10z+9d+6z-10d
6a-8n+14a-20n-10a-17n3pq-8pq+12pq-pq
15a2b+9y2z-28a2b-9y2z6m+4m2-4m-5m2-7
1875
—m+—n-—n+—m14n2-2pq+9n2-4
2727
2
—xy-4y-7xy5xy-19a2b+13xy+4xy
3
3a-2a+6a10t-3a+2t-3a
5m+6c+12m-8c-10m-20c4ab+8ab-10ab+ab
29x2y-8y2z+27x2y-6y2z2z+8z2+3z+8z2-8
1975
—x-—t+—t-—x9x2-2pq+2x2-4
2828
3
—mn+3z+7mn3mn-6x2y+17mn+19mn
2
9d+5d-3d3x+6a-2x-2a
5b+5n-19b-3n+16b+18n6xy+17xy+17xy-xy
28a2b-7b2c+22a2b+5b2c6m-4m2-6m+2m2-8
4675
—m-—n+—n-—m10z2+7ab+9z2+2
3737
1
—pq-5z-9pq7xy-15x2y-9xy+20xy
7
5d-2d+3d2y-9c-2y-7c
4a-2d-19a-11d-15a+17d3mn+17mn-18mn-mn
6x2y-5y2z-11x2y-7y2z3t+9t2+8t+9t2-3
1175
—z+—t+—t-—z6n2-6pq-2n2+4
5656
4
—xy-3y-4xy6mn-8x2y+10mn-11mn
5
4e-2e-7e6z-9b-8z+9b
8m+8d+20m+3d+19m+10d2mn+20mn-14mn-mn
4a2b-8y2z-29a2b+5y2z6n+3n2-9n-8n2+4
1775
—x-—t-—t+—x7m2+6mn+9m2+9
5656
2
—pq-7z+8pq2xy-13a2b-4xy-23xy
3
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