合并同类项综合练习题1.docx
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合并同类项综合练习题1
5e+3e-2e9z+5e+8z+10e
3b+4n-15b+14n+12b+18n6mn+14mn+13mn+mn
17a2b+2y2z-19a2b+2y2z6n+5n2+2n+16n2+3
3575
—m-—y+—y+—m14m2-5mn-2m2-7
4646
7
—xy-2m-6xy3mn-6x2y-11mn+13mn
6
2f-2f+3f2t-7d-6t-5d
3a-3n+17a-8n-10a-13n4pq+18pq+15pq+pq
16a2b-7b2c+4a2b-3b2c2t+6t2+9t-4t2-6
4175
—z-—y-—y+—z8m2-7ab+9m2-2
5858
1
—ab-4z-8ab7ab+8a2b+3ab+16ab
7
7f+2f-3f2m+2d+5m+7d
5m+9n-6m-6n+18m+17n3ab-6ab+19ab-ab
7x2y-8b2c+11x2y+6b2c3n-7n2+8n+18n2+5
1775
—z-—y-—y-—z18y2+5ab+6y2+6
4848
1
—ab+2n-6ab6ab-15x2y-18ab-27ab
8
8c+8c-7c4t-2a-6t-6a
7b-6d+10b-20d+16b-18d9xy-5xy-18xy-xy
22x2y+8y2z+23x2y+7y2z6m-8m2-8m+7m2-1
1775
—m-—y-—y-—m9z2-6ab-8z2-7
2626
6
—xy-2z+5xy8pq+8a2b-15pq+15pq
5
2a+2a-8a10m+7f+9m-8f
4b-2n-15b-2n+11b+13n9ab+8ab+18ab-ab
28a2b-7b2c-10a2b-4b2c3z-7z2-7z-10z2-9
3775
—z+—y-—y+—z18y2-6pq-2y2+1
2828
8
—ab+2n-7ab8mn-20x2y+6mn+8mn
7
4c+2c+6c5m+3f-6m+3f
8m-7c-3m-4c+17m+16c6xy-12xy-20xy+xy
30x2y+2b2c+18x2y+8b2c4z-6z2-2z+9z2+2
4175
—x-—t-—t+—x10n2-8xy+6n2-2
5858
4
—pq+4m-5pq4pq-7x2y+19pq+19pq
3
8e+4e-9e10n+2b+7n-5b
7a+5c-7a-4c+16a+18c6mn-9mn+13mn-mn
11x2y+6y2z-25x2y-7y2z2y+8y2+5y+16y2-4
1175
—m+—y+—y-—m19m2-2pq+8m2+4
4848
1
—mn-2x+7mn9xy+4a2b+5xy+29xy
8
5e-8e-4e9t-8f-4t+2f
5a+9c-13a+10c-14a-19c9xy+13xy-13xy-xy
7x2y+9y2z-11x2y+8y2z4n+2n2-3n+19n2+5
4675
—m+—n-—n-—m16x2+6mn-6x2+4
3737
5
—ab-6t-8ab2ab-7x2y+15ab+18ab
6
4c-5c-9c8y-9a+5y-4a
6a-5c-6a-6c+20a+14c6ab+3ab+10ab-ab
27a2b-4b2c-17a2b+7b2c7x-3x2-3x+11x2-2
6775
—x-—n-—n+—x2z2-8xy-7z2-9
5858
7
—ab+8t+3ab7xy-11x2y+7xy+28xy
6
2c+8c-3c3y+7c-6y-10c
2m-6c+3m+12c-12m-19c5xy-6xy+15xy+xy
25a2b+7b2c+6a2b+4b2c6y-8y2+7y+13y2+3
3175
—z-—n-—n-—z10x2-8xy+7x2+4
2828
1
—ab-9n+2ab9pq-16x2y+16pq+18pq
6