合并同类项综合练习题147.docx
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合并同类项综合练习题147.docx
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合并同类项综合练习题147
3d-4d+9d6z-6c+6z+9c
7m+2c-14m+20c-12m-10c7mn+8mn-11mn+mn
26x2y+5b2c-27x2y+6b2c6n-2n2-3n-6n2+8
5575
—m-—t+—t+—m8y2+6mn+7y2+4
4646
7
—xy-6x-5xy2ab-18a2b-7ab-2ab
6
5e-8e+7e2t-9f-9t-5f
4a+8c+19a-11c+15a+11c7pq-17pq-18pq+pq
6a2b+7b2c+22a2b-2b2c6n-6n2-7n+10n2+8
3975
—z+—t-—t+—z14m2-3xy-9m2-2
4848
6
—pq+7t+2pq8ab-8x2y-6ab-25ab
7
6c-3c+4c2t+4b+6t+7b
4m+8c-3m-6c+10m+15c8mn-13mn+11mn+mn
14a2b-8y2z-22a2b-3y2z3z-8z2+7z-16z2-7
3175
—m+—t+—t+—m2x2+7xy-4x2+2
2626
2
—mn-5m-3mn3ab-11a2b-12ab-24ab
3
6a+5a+9a2m-7b+4m-10b
6a-9d-4a+3d+13a-13d5pq-9pq-10pq+pq
27a2b-8y2z-14a2b+6y2z7m+5m2-4m-17m2-6
5175
—x+—y+—y+—x13x2+4xy-4x2-7
4646
4
—xy+6t+2xy4pq-16a2b-15pq-13pq
5
6d+8d+9d8z-9d+9z-8d
4m+3d+16m+12d-12m-13d8ab+15ab-20ab-ab
5a2b+6y2z-23a2b-6y2z9x-8x2+2x-4x2-5
3175
—m+—t-—t+—m7x2+9xy-7x2+7
2828
1
—pq+4n-8pq8xy+8a2b+16xy-5xy
8
7e-3e-7e3x+5e+9x-2e
2a+9c+20a-2c+13a-19c5ab+16ab-12ab-ab
17a2b+6y2z-29a2b+6y2z4z-2z2-2z-20z2-8
5975
—z+—t-—t+—z17z2-8ab-2z2-3
4848
9
—pq-2y-9pq7mn+10a2b-2mn-15mn
8
9c-3c+8c7x+9f+7x-6f
7a+8c+15a-13c-16a+13c8pq+19pq-13pq-pq
18a2b-4b2c-2a2b-4b2c2y+8y2-5y+7y2+3
3775
—m-—n-—n+—m10z2+8mn-2z2-8
4646
7
—pq-9x-5pq4mn+13x2y+12mn+24mn
8
9d+4d+4d5t+4d-5t+2d
3m-9c-18m-20c-16m-18c2xy-4xy+17xy-xy
30x2y+2y2z+23x2y+2y2z5z-9z2+8z+18z2-5
1175
—x+—y+—y-—x17n2-7pq-2n2-5
5656
4
—xy+7z-9xy4mn-7x2y+12mn+9mn
3
4f+4f+4f8t-6f+5t+2f
9a-9d-4a+11d-16a-19d3xy-8xy+18xy+xy
16a2b-6b2c-18a2b-6b2c4z+3z2-4z+18z2-9
6875
—x+—t-—t-—x7y2-4xy-2y2-8
5757
4
—pq-4n-6pq6xy-18a2b-20xy-5xy
3
4d+4d-6d8z+3c+9z+7c
3a+5c-14a+8c-11a-11c8ab-6ab-10ab+ab
14a2b-8b2c+4a2b+8b2c4n-5n2-5n-12n2-3
3175
—m-—n-—n+—m3t2+9xy+5t2-9
4747
7
—xy+5n+7xy8pq-3a2b-15pq-19pq
6
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