合并同类项综合练习题140.docx
《合并同类项综合练习题140.docx》由会员分享,可在线阅读,更多相关《合并同类项综合练习题140.docx(6页珍藏版)》请在冰豆网上搜索。
合并同类项综合练习题140
7d-4d+5d2x+8d-9x-4d
6a+6c-5a+6c+20a-17c3pq-15pq+19pq-pq
25a2b-4b2c-5a2b-3b2c9n-7n2-8n-9n2-8
1775
—m-—y-—y+—m12m2+9pq+5m2-6
5656
8
—mn+4x-3mn7ab+4x2y-4ab-28ab
7
5d+8d+2d7y+7e+3y-6e
3a+8n-3a-20n+20a+18n5mn-10mn-15mn-mn
23x2y+2b2c-4x2y-9b2c9y-9y2+3y+4y2-6
4975
—x+—y-—y-—x6t2-6xy-3t2+4
3838
1
—ab+9n+2ab9xy-9a2b+15xy-25xy
7
6a+9a+6a2n-2b+6n+2b
9a+7n-20a+4n-14a-13n8pq+2pq-13pq+pq
24a2b-9b2c+28a2b+8b2c3m+4m2+2m+17m2-5
3175
—m-—n+—n+—m9y2-6ab-7y2+4
4848
5
—ab-8x+6ab3mn-4x2y-20mn-5mn
6
3a+2a+2a6n+4d+6n-4d
2a-8d-10a+12d-13a-15d8ab-15ab-15ab-ab
24a2b+7y2z+28a2b-3y2z9x-6x2+6x+6x2+4
1875
—x+—n-—n-—x3z2-3pq+6z2-6
4747
3
—pq-5y-6pq4xy-17a2b+9xy+2xy
2
2a+8a-4a4y+6a-5y+7a
3a-3d+15a-2d-18a-16d2xy+10xy+15xy+xy
4x2y-5y2z-13x2y+4y2z8t-5t2-9t+3t2+5
4175
—m-—y+—y+—m6t2-9mn+5t2+4
5858
3
—ab-9m+6ab2ab+13x2y-7ab-4ab
2
8f+4f+7f3t-8e+2t-10e
6a+8n-8a-8n-14a-14n5ab+16ab-15ab-ab
15a2b+4b2c+19a2b+9b2c2x+7x2-6x-8x2-4
1175
—z-—y-—y-—z7n2+9ab-4n2-9
4848
6
—pq-9n+4pq5xy-3x2y+12xy-30xy
5
5b+8b+9b6x-8e+6x+2e
2m-4n+11m-12n+17m-11n9pq+15pq-19pq+pq
20x2y+8b2c+24x2y+5b2c4x+6x2+8x-8x2-1
6975
—z+—y+—y+—z17y2-5xy+4y2+9
5858
2
—pq-9x-5pq4mn+11a2b-13mn+20mn
3
3c+5c-8c5t+5e-7t-8e
7m+8n+16m+16n+19m-17n6ab+9ab-15ab-ab
22x2y-8b2c+4x2y-6b2c3t-2t2-4t-3t2+1
1975
—m+—n+—n+—m12z2+5xy-5z2+8
5858
9
—ab+5m+7ab5xy-14x2y+11xy-17xy
8
5d-6d+2d4t-4f+6t+6f
4a+7n-3a-9n-11a+17n7pq-14pq-14pq-pq
23a2b-5b2c-21a2b-3b2c8m-7m2-6m+19m2+1
4175
—x-—n+—n-—x15t2+7mn-8t2+7
5656
2
—ab+8m+5ab8xy+11a2b-8xy-25xy
3
8f-7f+2f8t-6a+6t-5a
2b-9n-4b+9n-15b+18n9mn+3mn+10mn+mn
10a2b+6b2c+22a2b+8b2c8x-9x2+4x+8x2-2
2675
—z+—t+—t+—z13m2-6pq+5m2+9
3737
1
—xy-8x-8xy4xy+11x2y-14xy-29xy
3