合并同类项综合练习题15.docx
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合并同类项综合练习题15
4c-6c+8c9x-7b-8x+3b
4a+6c-19a+13c+14a-14c6pq+5pq+18pq+pq
12x2y+8b2c+16x2y-9b2c6z-5z2-3z+13z2+4
1175
—m-—t-—t+—m4n2-6mn+3n2+2
5656
4
—mn+5t-6mn3ab-2x2y+7ab+24ab
5
6f+2f-3f5x+9d-6x+6d
4a-7n-4a-2n+19a+10n7ab+11ab+17ab+ab
27x2y-3b2c-30x2y-2b2c5t+3t2+7t-19t2-9
4175
—x+—n+—n+—x16m2+4xy-6m2-6
3636
4
—ab-8z-7ab5ab-17a2b+5ab+7ab
5
5e+7e-3e8n+2b+9n-3b
3a-3c-11a-8c-16a-12c5ab+14ab+13ab-ab
12a2b-8y2z-18a2b+2y2z8n+8n2-5n+11n2-4
1775
—m-—n-—n-—m6z2+3pq-6z2+9
3838
1
—mn-3y-8mn3mn-5x2y+13mn+6mn
3
2a+2a-8a2t-8b+5t+6b
2a+4d-18a+17d+10a+14d6mn-11mn-13mn-mn
21x2y+5b2c-10x2y+2b2c9x+3x2-3x-14x2+3
4775
—x+—t+—t-—x17z2-9ab-3z2-8
3838
9
—xy+4x+6xy2mn+4x2y-2mn+24mn
8
8e+7e-4e10x-3e+7x+3e
6m+2n-7m+16n+13m+11n7mn-2mn+17mn+mn
23x2y-6y2z-21x2y+3y2z3z-4z2-9z-18z2-7
5775
—x-—y+—y+—x4z2-5mn+8z2+4
4646
4
—mn-6m-9mn3xy-6x2y+14xy-23xy
5
3a-3a+2a9z+3e-3z-9e
4m+3n-9m-10n+18m-15n3mn+7mn+18mn+mn
12a2b+5b2c+29a2b+4b2c4x-3x2-6x-7x2-9
1975
—z+—n+—n-—z17z2-2pq+3z2+1
2828
5
—ab+5m+3ab5pq-17x2y+18pq-18pq
4
8b-2b-4b3x-9e+6x+5e
2a+8n-20a-16n-13a+12n9mn-15mn-11mn-mn
5x2y+9b2c-7x2y+8b2c4t+9t2+9t+12t2-5
1775
—x+—t-—t+—x16x2+2ab-5x2-8
4646
1
—xy-7y-8xy4pq+2x2y+9pq+4pq
2
7e+4e-3e10t-4c+9t-5c
9b+5d+4b-13d-12b-13d4xy-8xy-14xy+xy
23x2y-8b2c-7x2y+5b2c2x-8x2-4x-8x2+1
6575
—x-—t-—t-—x6y2+4xy-9y2-8
5656
4
—pq+2t-9pq4xy-3x2y-7xy-18xy
3
5d-6d-7d4m+9e+5m+10e
7b+6n+11b-15n+19b-13n7pq+8pq+13pq-pq
17x2y-3b2c-28x2y+6b2c2n-5n2+8n-20n2+5
5175
—z-—n-—n-—z14n2-5mn+6n2-1
4646
1
—ab+4t+2ab9ab+2a2b-2ab+9ab
8
2e+8e-6e6z-5f-9z+9f
2m+4d-11m-5d+14m-10d3ab+2ab-14ab-ab
17x2y+4b2c+13x2y-6b2c6m-5m2-5m-17m2+1
3575
—m-—t-—t+—m3z2+7ab-6z2-5
2626
5
—ab+7y+2ab4ab+16a2b-12ab-11ab
6