合并同类项综合练习题88.docx
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合并同类项综合练习题88
3e+3e-3e8y+2c+7y+8c
6b+5n+14b+17n-15b-20n7mn+4mn-10mn+mn
16a2b+6b2c-27a2b-5b2c3n-4n2-6n+10n2+7
1875
—z-—t-—t+—z5y2-5xy-6y2-3
4747
1
—pq-9n-9pq3xy-6a2b-3xy-13xy
3
7c-7c-8c6y-2d-8y+6d
8m-5n+16m+6n-19m+10n8pq+10pq-11pq+pq
7x2y-6y2z+6x2y+5y2z3t+7t2+3t+14t2+4
3975
—m-—y-—y+—m10n2+9mn+8n2+3
4848
4
—ab-9n+2ab7pq-12x2y-17pq-27pq
5
3a-9a+5a5y+2d+3y+6d
5a+4d+9a+9d-14a+19d7pq+6pq+16pq+pq
6a2b+6b2c+30a2b+6b2c6z+3z2-3z+5z2+3
1875
—z+—t+—t-—z17y2-9mn+3y2+6
5757
1
—ab-5n-2ab8mn+16a2b-12mn-8mn
4
9f+4f-4f7y+6b-6y-5b
5a+4c+9a+16c-19a+15c9xy+18xy-15xy+xy
23a2b+6b2c-25a2b-2b2c3m+2m2+5m+16m2+5
5175
—z-—n+—n+—z2y2-5ab+2y2+4
4848
3
—mn+6z-2mn2xy-16x2y-20xy-10xy
2
2d+8d+4d6z+5d+7z+7d
7b+2d+13b-10d-17b+12d4pq-2pq-11pq-pq
2x2y-2y2z+17x2y+5y2z4m-2m2+4m+5m2-1
4975
—x+—t+—t+—x18y2-7pq+6y2-3
5858
7
—ab+3z+7ab9xy+3a2b-19xy-8xy
6
9d-4d-4d7m-8c+9m-2c
4m+3n+19m+11n+10m+12n5mn+19mn+10mn-mn
25x2y+2y2z+11x2y+2y2z4m-7m2-5m+20m2+2
4775
—m+—n+—n-—m15y2+6mn+7y2+9
3838
1
—pq-2t-8pq3ab-10a2b-8ab-6ab
2
3d+3d+3d4t-6d+4t+10d
6b-7d+3b-7d+14b-10d8xy-17xy-19xy+xy
14a2b+4b2c-20a2b+9b2c4t+7t2+6t-10t2-6
1775
—x-—y+—y+—x20m2-3mn-8m2-5
3636
6
—ab+9z-6ab5xy-2x2y-6xy+22xy
7
4b-7b-7b4x-2f+3x+3f
3a-5d-7a+15d+11a+17d7xy-20xy-15xy+xy
12a2b-7b2c-24a2b-7b2c9z-2z2+3z-10z2+2
4875
—m+—y+—y-—m16n2-6xy+6n2+3
5757
6
—pq-8x-9pq7ab-10x2y+5ab+21ab
5
3f-7f-3f9z+4f+4z+4f
2b-7n+11b+16n+10b+10n3mn+17mn-19mn+mn
7a2b+3b2c+14a2b-9b2c9y+6y2+6y-7y2+1
4875
—m-—t-—t+—m7z2-3ab+4z2-4
3737
3
—pq+3m+2pq3xy+4a2b-19xy-25xy
4
6f+7f+7f4z-3d-2z+4d
8b-3d-5b-8d+15b+18d9xy-11xy+12xy-xy
29a2b-5y2z-27a2b-9y2z3t+6t2-7t-3t2-6
5175
—x-—y-—y+—x12m2+4ab+6m2-4
4848
1
—xy+7t+3xy5pq-17a2b-20pq-27pq
4