合并同类项综合练习题60.docx
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合并同类项综合练习题60.docx
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合并同类项综合练习题60
7a+7a-6a2x+4f+2x-6f
9a+2c-11a+18c-12a+13c6ab+9ab-18ab+ab
17a2b-8b2c+8a2b+5b2c2m+2m2-8m+11m2+6
5175
—z-—t+—t-—z4m2+8ab-4m2-9
4747
6
—ab+4m+9ab9pq-14x2y-4pq+15pq
5
5b-3b+2b3m+4e+8m-9e
3a+2n-3a-13n+15a-20n3ab-16ab+20ab+ab
14a2b-9b2c+4a2b-8b2c5z+9z2-4z+6z2+8
3175
—z+—y-—y+—z9z2-8pq+6z2-6
2626
2
—mn+8n+6mn5mn+19x2y+4mn-14mn
3
2a+7a+6a10n+9d+5n+9d
7a+7n+19a-3n+15a+16n9xy-6xy+10xy+xy
29x2y-3b2c-20x2y+4b2c6y-9y2-4y-11y2-8
4875
—x-—n-—n-—x20n2+5xy+7n2+8
3737
1
—xy+7z+3xy5pq-7a2b-3pq+17pq
7
2a+3a-9a5y+4d+7y-3d
8b+7c-2b-14c-19b+19c2ab-15ab-17ab+ab
23a2b+7b2c-27a2b-6b2c2n+4n2-6n-15n2+5
5875
—m-—t-—t+—m12t2-8pq-4t2-4
4747
1
—mn+2n+7mn4mn+10x2y-3mn+23mn
2
2d-8d-3d2t-6d+6t-8d
4a+5d-11a+15d-11a+13d2xy-20xy+14xy+xy
16a2b-2y2z+17a2b-5y2z4t+5t2+3t-18t2+2
1175
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4848
3
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4
4c-4c+8c6z-8b+2z-10b
9a+8c-16a-9c+20a-19c4xy-10xy+12xy-xy
11x2y-3y2z-21x2y-3y2z7m-8m2-5m-9m2-4
1775
—z+—t-—t+—z18m2-2xy+2m2-8
2626
1
—pq+6m-4pq9ab-12x2y-7ab-10ab
5
2d-9d-6d4t-2d-2t-5d
8a-2n+10a+5n+13a-19n4mn-8mn+14mn-mn
3a2b-4b2c+20a2b-3b2c2y+5y2-9y+17y2+9
6775
—x-—t+—t-—x3z2+4xy-5z2+6
5858
1
—pq-2x+9pq8mn+11x2y+8mn+5mn
8
8e-3e+2e8n-6c-2n-2c
8m+4c-5m-3c+14m+16c5ab-15ab-14ab-ab
15x2y+7b2c+16x2y-8b2c2n-8n2-9n+9n2-7
1575
—x-—t+—t+—x19y2+7xy+6y2-1
2626
2
—pq-6x+4pq3ab+6x2y+18ab+4ab
3
4e-3e+9e6n-3d-3n+9d
2m+8d+3m-18d+16m-12d8ab-20ab+16ab-ab
24x2y+2b2c-5x2y+3b2c9y+8y2-8y-18y2+4
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—m-—t-—t-—m2t2-5pq+5t2-9
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9f+3f-8f9t-4f-4t+3f
8a-7n-2a+6n-10a-14n4ab-13ab-19ab-ab
23x2y-5b2c+19x2y-8b2c4x+3x2+9x-18x2-3
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—m+—n-—n-—m9m2-5xy-7m2+6
3838
3
—xy+6t+7xy9mn-5x2y-6mn-15mn
4
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