合并同类项综合练习题115.docx
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合并同类项综合练习题115
6e-5e+9e3n-6a-5n-5a
6b+5d-5b+19d+12b+16d7mn-13mn-14mn-mn
23x2y-8b2c+9x2y+3b2c4t-9t2+6t+5t2+7
4175
—x-—t+—t+—x2z2-2pq-4z2+6
3737
4
—pq+2y-2pq6mn-6a2b-19mn+11mn
5
5f-8f-6f5z-2c-4z-5c
8a-5n+13a+19n-16a-16n9ab+9ab+15ab+ab
29a2b-7y2z+26a2b+3y2z3x-5x2+5x-7x2-5
1975
—z+—n-—n-—z16t2+3ab-4t2+4
2828
5
—mn-7y+3mn7xy-20a2b-13xy-17xy
6
6c+2c-4c6t+3f+5t+4f
3b+7c+19b+6c+13b+18c8ab-7ab+10ab-ab
4x2y+5b2c+27x2y+6b2c2n+9n2-9n+12n2-5
4775
—m-—y+—y+—m17y2+5ab+6y2+8
5858
1
—mn-2x-2mn6ab-2a2b-11ab+5ab
5
3f+8f-8f3x+7e-5x-10e
8m-8c+13m-7c-19m-18c8ab+20ab-14ab-ab
18a2b-4b2c-23a2b+2b2c5x+3x2+4x-18x2+8
1175
—z-—t-—t+—z16t2-6xy-7t2+2
2626
4
—pq+6t-6pq5mn-13x2y+5mn-11mn
5
5a-8a-5a4m+5c+7m-2c
3b+7c+18b+20c-14b-12c2ab-4ab+14ab-ab
12x2y+5b2c+18x2y+6b2c8n-4n2-2n+19n2+3
1575
—x-—t+—t-—x13n2-6ab+9n2+9
4646
9
—ab-2m+5ab5xy-15x2y-13xy-26xy
8
6c+7c+8c10t+7d+5t-10d
4a-4c-16a+15c+13a-17c2xy-14xy+11xy-xy
21a2b+3y2z+10a2b+6y2z4t-8t2-9t+16t2+1
4175
—x-—n+—n+—x20n2+7ab-2n2+5
5656
1
—ab+7y+6ab7ab-9a2b-5ab-15ab
7
3d-3d+4d2m-9f-2m-6f
4b+9c-15b-19c+17b+10c3pq+4pq+15pq-pq
21a2b+5y2z-19a2b-8y2z6z-6z2-8z-11z2-2
3675
—z+—y-—y+—z11t2-5pq-5t2+8
4747
4
—ab+7m+4ab6xy+7a2b-14xy-23xy
3
3d+8d-7d9y+8d-3y-9d
5b-3d-2b-11d-17b-11d9ab-20ab+13ab-ab
16x2y+4y2z+5x2y+5y2z9z+8z2+2z+3z2+7
1875
—x+—y+—y+—x8t2-6mn-4t2-5
4747
7
—mn-4x-4mn5xy-6x2y+20xy-10xy
6
2f-8f-8f5m-4c+4m-9c
2a+9c-13a+9c-19a-19c9mn-13mn-15mn-mn
25a2b-3y2z-16a2b-8y2z2y-5y2+6y-19y2+4
3775
—x-—y-—y-—x10z2-6xy-4z2-9
4848
7
—xy+6t-9xy4xy-16x2y-14xy-16xy
6
9c-9c+8c2m+7b-7m-9b
6a-2d+8a+3d+16a+12d2pq+7pq+19pq+pq
25a2b-9b2c-24a2b-2b2c4z-9z2+7z+4z2-9
5875
—z-—t+—t-—z7n2+4mn+7n2+6
4747
1
—ab-2m-2ab3mn-19x2y+2mn+25mn
2