合并同类项综合练习题49.docx
《合并同类项综合练习题49.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49.docx(6页珍藏版)》请在冰豆网上搜索。
合并同类项综合练习题49
9d-6d+8d6z+2d-6z-6d
4a+2n-12a+18n-12a+19n6xy-6xy+19xy+xy
18a2b+7y2z+7a2b-2y2z6z+6z2+4z-9z2-6
1575
—m+—t-—t-—m19x2-4xy+5x2-1
2626
4
—mn-5z-7mn6ab+2a2b-2ab-8ab
3
6f+2f-8f6x+5b-8x+9b
2m+5n-7m+3n-20m+17n4pq+17pq+11pq-pq
3x2y+9y2z-9x2y+6y2z6x-2x2+4x-17x2-2
6575
—z-—y+—y-—z20t2+8pq+4t2+9
5656
1
—xy+3t-8xy4mn+5a2b+6mn+4mn
3
7c-6c-5c3t+4f+9t-7f
5a-4d+6a+9d+11a-20d7xy-11xy+15xy+xy
8a2b-9b2c+22a2b-3b2c8z-3z2+6z-10z2+2
1175
—z+—t-—t+—z12t2-6ab+4t2-2
2828
1
—xy-6n-3xy2ab+9x2y-13ab-23ab
7
2d+7d+9d9y+6b-8y+6b
7a-4d+20a+7d+10a+19d6pq+14pq-11pq-pq
25x2y-9y2z-14x2y-9y2z9n-8n2-5n+19n2+3
3675
—m-—t-—t+—m20x2-3ab+9x2+7
2727
3
—ab-2z-3ab5ab-20x2y-2ab+14ab
4
4f+9f-7f8x-6e-7x+8e
8a+2c+8a-15c+15a+20c4mn-19mn-19mn-mn
13x2y-4y2z-8x2y+4y2z2t-6t2+7t-17t2+2
1675
—z-—y+—y+—z14y2+6mn-3y2-2
3737
1
—ab+3n+7ab7mn-16x2y-5mn-23mn
4
2b-6b+5b10z-3c-9z-7c
9a-2c+13a+17c-18a+11c7pq+7pq+19pq-pq
11x2y+7y2z+5x2y+3y2z3t+5t2+6t-9t2-8
1875
—x+—t+—t+—x6n2-3pq-5n2+8
3737
1
—xy-2x+5xy2ab+9x2y-18ab-22ab
7
4e+5e-8e9t+7b+4t-6b
5b-8n-18b-6n+18b-10n5ab+10ab-14ab-ab
15a2b+7y2z-6a2b-2y2z4n-6n2-6n-12n2-4
5175
—x+—y-—y+—x7m2-2pq+6m2-8
4747
1
—pq-2m+6pq8mn-16x2y+17mn-3mn
6
7c+3c-4c3x+8c-9x-6c
5b+3d-10b-20d+18b-15d6pq+10pq+15pq+pq
23a2b+6b2c+23a2b-3b2c6y-7y2-7y-19y2+2
6675
—x+—t-—t+—x4m2-2ab-3m2-3
5757
1
—pq-4y-2pq2xy-6x2y-15xy+10xy
4
7c-3c-3c9t-3b+6t+2b
4a-7n-2a+12n+15a+19n3pq+16pq-17pq-pq
8a2b+4y2z-2a2b+6y2z4z+8z2+8z-4z2-2
1975
—m-—n+—n+—m5m2-3xy-4m2-5
4848
9
—xy+5n+6xy8pq+15x2y-14pq+5pq
8
2a-2a+6a6x+2e-8x+6e
3m+2d+13m+12d+15m+14d9pq+10pq-12pq-pq
6a2b-9y2z+20a2b-7y2z9x+6x2+4x+5x2-2
2875
—m-—n-—n-—m11x2-4pq+3x2-2
3737
6
—xy-7x+6xy5xy-4a2b-20xy+12xy
5