合并同类项综合练习题152.docx
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合并同类项综合练习题152
5b-2b+5b7y+2d-6y+2d
2a+8c-14a-12c-20a+20c5mn+4mn+14mn+mn
22x2y-7b2c+17x2y+5b2c2z+8z2-2z+10z2-5
1675
—m+—t-—t+—m19x2-7ab-6x2-8
5757
7
—xy+7y-2xy7mn-8x2y+11mn-27mn
8
4e-5e-4e10z-5b+2z+5b
5a-3c-17a+20c-14a-17c8ab-3ab-19ab-ab
21x2y+7y2z+15x2y+7y2z8x+4x2-7x+15x2-7
2775
—m+—n+—n-—m13m2-8ab+4m2+3
3636
6
—ab+5y-4ab5mn-13x2y-9mn+19mn
7
8f+6f+9f2n-4b+6n+9b
7a+8d+8a-8d-15a-14d8mn+3mn+16mn-mn
22a2b+5b2c+21a2b+6b2c8z-6z2-2z-15z2+9
3775
—z-—y-—y+—z11z2+4ab-2z2+1
2626
9
—ab-9y+7ab7xy+20x2y-10xy-18xy
8
4a+7a-9a10z+3c-8z+9c
7a+4d+7a-19d+18a-12d3xy-7xy-11xy+xy
12a2b-7y2z+11a2b-2y2z8z+2z2-3z-13z2+4
1675
—x+—y+—y-—x16y2+2xy+3y2-4
2727
1
—pq-4y+8pq3pq-6a2b+12pq+4pq
2
5a+8a+9a10n-6c-9n+3c
8a-6d+12a+19d-15a+18d9mn-13mn+18mn+mn
13a2b+6b2c-4a2b-4b2c7m+7m2-8m-8m2-9
1675
—x-—y-—y+—x6y2-3ab+2y2+3
5757
5
—ab+4n-2ab6mn-10a2b-8mn-26mn
4
6b-2b+2b5m+5d-3m-8d
5a+9d+17a+16d-16a+16d7ab-11ab-16ab-ab
5x2y+5y2z+30x2y+2y2z5t+8t2-2t+5t2+4
2675
—z+—n-—n-—z4m2-8pq+4m2+8
3737
1
—pq+4m+2pq7pq-18x2y+14pq-26pq
4
9c-3c-6c2y-8a+6y-6a
9m+7n+11m+6n-14m+13n2mn+18mn-19mn-mn
20x2y+7y2z-18x2y+9y2z4n-3n2-8n+20n2-9
1775
—m+—n+—n-—m11z2+2mn+8z2+4
2828
1
—mn-6x-3mn5xy+14a2b+11xy+18xy
2
3f+5f+9f4n+3a-6n-3a
6b+6d+9b+2d+12b+13d3xy-12xy-12xy-xy
19x2y+6y2z-4x2y-7y2z6x-8x2-3x+11x2-3
1175
—m-—y+—y-—m18n2+2mn+5n2+5
2626
6
—xy+9y+2xy2mn+15x2y+13mn+26mn
7
4b-8b-9b2t-6c+5t+7c
7b+4d+20b-16d-18b+14d9pq-14pq+10pq-pq
23x2y+5y2z+20x2y+3y2z8m-6m2+3m-14m2-9
4675
—z+—y+—y+—z3z2-6mn+4z2+7
3737
1
—ab+3y-3ab8mn+9a2b+3mn-9mn
2
3b+2b-5b10x-9f-3x+9f
6b+7c+13b+11c-19b-13c7mn+10mn+17mn+mn
9x2y-8b2c+27x2y+3b2c3y-8y2-6y+20y2+3
4175
—z+—n-—n-—z6n2+6ab-8n2-3
5858
9
—xy+4y+8xy3xy+4x2y-9xy+22xy
8