合并同类项综合练习题92.docx
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合并同类项综合练习题92.docx
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合并同类项综合练习题92
9b+4b+5b6m+3b-5m-10b
4b-2n+18b+5n+18b-12n2ab+20ab-18ab-ab
24a2b+3y2z+7a2b+9y2z9y+3y2-2y-20y2-4
5975
—x+—n-—n-—x7n2-6mn+9n2-5
4848
3
—pq+6z+6pq3mn+8a2b-15mn+27mn
2
8b+2b+7b7m-4c-4m-8c
4a-2c-12a+3c+13a+16c5xy+9xy+12xy-xy
20x2y+2y2z-30x2y+2y2z8m+5m2+2m-7m2-4
6775
—m+—n+—n+—m5t2+8pq+2t2+9
5656
3
—mn-9x-7mn9xy+4x2y+12xy-18xy
2
3e+8e+2e9x+5e-5x+7e
5a-4c+8a+20c-11a-20c7mn-15mn-11mn+mn
27x2y+8y2z+18x2y-4y2z5m+4m2+6m-11m2+1
1175
—m-—y+—y+—m3y2-8xy+8y2-3
2626
1
—pq-6y-9pq8xy-7x2y+10xy-20xy
5
2b+6b+9b2y-6b+2y-7b
9a+8c-16a-14c-15a+16c2ab-8ab-14ab-ab
21a2b-6b2c+11a2b+4b2c8y+9y2-4y-4y2-5
1675
—x-—t+—t-—x17x2+3ab-8x2-9
4747
1
—pq-4y+7pq5pq+7x2y-8pq+4pq
5
7b+3b+2b2z-9a+2z-7a
2m+7c-13m-2c-17m-15c8pq-18pq-18pq-pq
21x2y-4y2z+9x2y+7y2z8t+5t2+2t-18t2+1
1175
—x-—n+—n-—x5m2+3mn+7m2+9
5757
1
—mn+7z+2mn8pq+2x2y-5pq+24pq
5
9c-8c+7c3n+4d-2n-10d
8a-6c-19a+18c-10a+15c8ab-11ab+14ab+ab
11a2b-8b2c+20a2b+8b2c5z+5z2+5z+15z2+9
1875
—z-—n-—n+—z16y2-7pq+3y2-8
2727
3
—pq+9n+3pq7xy-14a2b+13xy-9xy
4
6d-6d-3d6y-4c-2y+8c
2m-7n-5m+7n+14m-16n9pq+5pq+18pq-pq
18x2y-8b2c+4x2y+3b2c2t+9t2-9t-4t2-3
5775
—m-—y-—y-—m10m2+3pq-6m2-7
4646
3
—ab+4y+2ab9mn+9a2b-9mn+12mn
2
9b-8b-7b10m-2d+9m-4d
2m+2n+9m+11n-20m+15n4mn+5mn-10mn-mn
12a2b+5y2z-23a2b-6y2z2x+8x2+7x-7x2+2
1175
—m-—t-—t+—m12y2-3ab-6y2+4
3636
5
—ab-4x-3ab2pq-12a2b+17pq+22pq
6
9a+4a-7a6z-3f-5z+5f
7m+4n-8m+15n-14m+10n9pq+16pq-19pq+pq
16a2b-8b2c+21a2b+9b2c3n-2n2-2n+12n2-8
1675
—z+—y+—y-—z2z2-9mn+7z2-2
2727
2
—ab+4z+8ab6mn+12x2y-19mn+21mn
3
7d+5d-5d10m+8e-5m-3e
7a+4c+2a+10c-11a-13c6xy-3xy-11xy-xy
29x2y+9b2c-29x2y-3b2c7t+7t2+8t-11t2+2
1175
—x+—y+—y-—x15z2+3ab-4z2+1
4747
1
—ab-9t+4ab2mn+14a2b+9mn+23mn
6
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