合并同类项综合练习题80.docx
《合并同类项综合练习题80.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80.docx(6页珍藏版)》请在冰豆网上搜索。
合并同类项综合练习题80
5a-4a+5a7n+7c+2n+9c
5b+2c-2b-17c+10b-17c6xy+12xy+12xy+xy
26x2y-8y2z+20x2y-4y2z6t+6t2+2t-11t2+3
1875
—m-—n+—n-—m2z2-3pq+9z2+5
2727
2
—pq-5n+9pq5xy+8x2y-8xy-23xy
3
6a-7a+2a5x-6e+3x-3e
2b+5n+11b-8n-11b-11n9pq+13pq-17pq+pq
14x2y-6y2z-6x2y-2y2z4x+5x2+6x+4x2+5
6775
—m-—t-—t+—m16m2-2xy+5m2+7
5656
5
—ab+2m-2ab7xy-9x2y+13xy-6xy
6
2e-6e-8e4n+3e+2n-2e
2b+9d-11b-5d-11b-13d4ab-11ab-19ab-ab
20a2b-4b2c-12a2b+9b2c2z-6z2+4z-19z2-4
3175
—x-—y+—y+—x12m2+2xy+2m2+6
4646
5
—ab-4t+2ab2pq+2a2b+12pq-7pq
4
9f-4f+2f7x+7b+9x+7b
4m-9c-14m+19c-20m+20c3ab+12ab+20ab+ab
6x2y-5b2c+30x2y-4b2c2t-3t2+5t+9t2-6
1775
—m+—n+—n+—m14z2+7ab-6z2-3
2828
4
—pq+7z+2pq6ab-5x2y-15ab-24ab
3
7d-6d-5d3x-8b+7x-8b
5m+8c-10m-6c-15m-10c6ab-11ab-14ab+ab
6x2y+8b2c-29x2y+8b2c3y-2y2-3y-20y2+5
3575
—z+—n-—n+—z3t2-7ab-2t2+5
2626
1
—ab+4t+7ab2mn+9a2b-16mn+19mn
2
8c+3c+7c7n-3d+7n+3d
2b-9n+11b-9n-10b-18n8pq-4pq+19pq-pq
28a2b-3b2c+18a2b+9b2c7z+9z2-9z-2z2+3
5775
—m-—t+—t+—m3z2-6pq+4z2-8
4848
4
—pq-2x+6pq8xy+20x2y+5xy-16xy
3
3a+8a-9a6n+9c-7n+2c
2a-5c-11a-14c-11a+12c7xy-4xy+20xy+xy
25x2y+2b2c+19x2y+5b2c9x+7x2-9x-14x2+3
3175
—m-—y-—y-—m6x2-9mn+6x2-6
4848
1
—xy-9m-2xy5xy-3x2y+17xy+27xy
8
5f-4f-7f5x-4a-4x+8a
4b+4c+19b+2c+14b+12c9pq-11pq-17pq+pq
2a2b-2y2z-9a2b+3y2z5x-4x2-4x-3x2+7
4175
—x+—y-—y-—x15y2+8ab+5y2+6
5757
1
—xy-6z+4xy9ab+18x2y+13ab+25ab
2
7b-8b+7b10y+4f+5y-3f
6m+9d-19m-2d-15m-10d2ab-9ab-15ab+ab
30a2b+7y2z+5a2b-9y2z2x+9x2-3x+9x2+7
4175
—x+—y+—y-—x4m2+9xy-8m2-5
5757
5
—mn+4x+5mn2mn-19a2b+19mn+9mn
6
2d-6d-3d2x+9a+8x+9a
5b-6n-19b-15n+10b+18n2pq-4pq+19pq+pq
19a2b-8y2z+7a2b-3y2z8m+7m2-7m+20m2+2
1775
—m-—y-—y+—m3z2+7xy-8z2-6
4646
5
—mn-8z-9mn7xy+18a2b+2xy+28xy
6