合并同类项综合练习题98.docx
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合并同类项综合练习题98
6e-7e+4e3m-3c+6m-10c
6b+9n-9b-6n+10b-17n3pq-14pq+10pq-pq
8a2b-4b2c-5a2b-9b2c2n+7n2+3n-15n2-9
3775
—m-—n+—n+—m5n2-8xy-4n2-3
4646
1
—mn+8n+2mn5mn-13a2b+5mn+27mn
2
2b+7b-5b2z+5e+8z+9e
9m+6n-8m+8n-16m+17n2pq-15pq+15pq-pq
18x2y+3b2c+26x2y+4b2c8x+9x2-5x+5x2+5
5775
—m-—t-—t-—m13t2-2pq+2t2+8
4646
4
—ab+7t-5ab4xy-16a2b-3xy-18xy
5
5f-9f+9f3x-8f-9x+8f
4a-8d+10a+11d-16a-19d7xy+3xy-12xy-xy
29x2y-6y2z-12x2y+4y2z2x-6x2-7x-5x2-5
1775
—x-—t+—t-—x4y2-8pq-4y2-1
4646
4
—ab+7y-4ab2mn-4x2y-5mn-20mn
3
4f-2f+6f9n-3a-8n-3a
5b+2d-13b-19d+11b-15d7xy+11xy-14xy-xy
17a2b-2b2c+14a2b+4b2c8x+7x2+2x-18x2-6
3175
—z+—t+—t+—z10x2+4ab-4x2-5
4848
1
—mn+8m+7mn4ab+19a2b-17ab-29ab
7
2e-8e-6e4n-4e+9n-3e
2a-5c-6a+11c+11a-13c6ab-14ab-11ab+ab
22a2b+6b2c+16a2b+7b2c4z+4z2-2z-6z2-1
5775
—x-—y-—y+—x15z2+3mn-2z2-2
4848
6
—mn+9x+6mn9pq-11x2y-2pq-17pq
7
4d-8d-7d8t-9c-5t+4c
8a-2n+17a-12n+13a-14n5xy+12xy+19xy-xy
19a2b+8b2c-24a2b-4b2c7z-6z2+9z-7z2-2
4775
—z+—y+—y+—z10y2-6mn+6y2+3
3838
3
—xy+4x-3xy7pq+18x2y+10pq-22pq
4
9a-4a-7a8z-8f-3z-7f
9a+6d+4a-11d+19a+12d6pq-15pq-10pq+pq
21x2y+2y2z+22x2y+2y2z6z+9z2-7z-7z2-4
4875
—z+—y+—y-—z9z2+5ab-7z2-1
3737
4
—xy+2z+3xy8ab+18x2y+10ab+15ab
5
4b+8b-2b2t+3f-5t+3f
4m+6c-11m+15c-14m+13c5pq-8pq-12pq+pq
10x2y-9b2c+20x2y+3b2c3n+3n2+8n-3n2-4
1875
—m+—y+—y+—m14z2+5ab-3z2+5
3737
4
—ab+8x-7ab7ab-14a2b+16ab+22ab
5
9a+6a-5a3z-4b-5z+10b
2m-3d-19m+2d-10m-11d7mn-13mn+18mn+mn
23x2y-4b2c-8x2y+9b2c8x+5x2+5x-19x2+7
1175
—m+—t+—t-—m9y2-8xy-8y2+9
2727
3
—ab+9z+5ab3mn+6a2b+4mn+28mn
4
8a+3a+2a7z+7e+6z+4e
6m-7c-16m-16c-17m-13c6ab-2ab-14ab+ab
6a2b+5b2c+15a2b-4b2c5m-8m2+5m-11m2+1
5775
—x+—y+—y-—x4n2+4pq+7n2-8
4646
6
—ab-3z+5ab4mn-13x2y-8mn-17mn
7