合并同类项综合练习题102
7c+2c+6c 7z-7f-5z-6f
6a-7d-4a-19d-14a+13d 7xy+11xy+10xy+xy 27x2y+9y2z-3x2y+5y2z 9y-6y2+9y-20y2+6
1 9 7 5
—x+—n+—n-—x 11y2+9pq-9y2-3
2 8 2 8
1
—xy-7t+4xy 4pq+16x2y-13pq-28pq
4
3b+5b+4b 5y+8d-5y+9d
4a+7d+11a+9d+14a-10d 4xy+9xy+20xy-xy 27a2b+4y2z-21a2b-4y2z 6z-5z2-5z-10z2-7
1 1 7 5
—m-—y+—y+—m 13z2+2pq+8z2-9
4 8 4 8
3
—ab+9t+6ab 4mn+8a2b+16mn+14mn
2
7d-6d+3d 9n+6c+9n+4c
8b+6n-4b-9n-14b-12n 4ab+16ab+15ab-ab 13x2y-5b2c+2x2y+9b2c 2z-9z2+5z-14z2-1
6 1
7 5
—x-—t-—t-—x 6n2-3xy+8n2+7
5 8 5 8
1
—ab+5n-2ab 4xy-16x2y+9xy-16xy
5
8c-9c-4c 4z-9b-7z+6b
8a+3d+5a-19d+15a-20d 9pq+9pq+16pq-pq 16a2b-4y2z+26a2b-3y2z 4x+6x2-3x+3x2-5
3 5 7 5
—m+—n-—n+—m 7m2+5pq-5m2-2
4 6 4 6
7
—ab-4x+6ab 3pq+16x2y-9pq-5pq
8
相关主题