初一数学上册合并同类项专项练习题64Word文件下载.docx
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1
—mn-3m-7mn3xy-10a2b-6xy+23xy
8
9b-3b+3b2z+8e-9z-2e
7a-8n+17a+2n+12a+12n2mn-15mn+11mn-mn
13a2b-9b2c+20a2b-7b2c2t+4t2+7t+9t2+1
1175
—z-—n-—n-—z20n2-6ab+2n2-3
2626
—mn-8y-5mn8mn+15x2y-13mn+19mn
4e+4e+5e2n+4e+5n+10e
2m+8c-9m+5c+16m+18c4mn+14mn+18mn-mn
3x2y-5b2c-21x2y-7b2c6y+2y2+7y-4y2-2
3575
—x+—n-—n+—x14x2-8xy+6x2+6
4
—mn-4y+4mn2pq-2x2y+6pq-26pq
3
7b+6b+3b2y+5a+2y-4a
7b+7n-9b+14n-12b+16n6xy-13xy+11xy-xy
22a2b-2b2c-30a2b+4b2c9t-3t2+4t-19t2-2
3775
—z-—y-—y-—z7t2-3xy+6t2-4
2828
9
—ab-9n+6ab6mn-11a2b+8mn-11mn
2e+6e+3e4z-3b+4z-7b
5m+4d-14m-17d+14m+20d5mn+13mn-12mn-mn
16x2y+4y2z+16x2y-6y2z2t-4t2+2t-14t2-4
1975
—m-—t+—t+—m18y2-3mn+4y2+4
5858
5
—mn-8x+9mn8pq+20a2b+16pq+15pq
6
2c-9c+5c3y+7f-4y-2f
9m-5n+11m+8n-13m+15n8mn-9mn-11mn+mn
20x2y+4y2z+3x2y+3y2z7z+9z2-9z-6z2-2
4875
—x-—y-—y+—x17z2-9ab-8z2-3
—pq-5z+3pq7mn+3x2y-7mn-29mn
7f-4f-6f6z+2a-6z-5a
9b-4d+14b+14d+16b-12d8ab+19ab+12ab+ab
9a2b-5b2c+14a2b-5b2c2t-4t2+8t+15t2+9
—x+—y+—y-—x16t2+7mn+4t2-1
—pq-6t+7pq7xy+8x2y-14xy+9xy
8b-9b-5b10y+3a-9y+5a
6a+3d-10a-10d-12a+16d4mn-19mn-14mn+mn
4a2b+2y2z+30a2b-9y2z4z-7z2-7z+4z2+2
2175
—m-—y-—y+—m14t2+2ab+5t2-9
3737
—ab+6x-6ab2pq-13x2y+4pq+13pq
6a+6a-5a8x-8d+7x-6d
3b+9d-10b-12d+12b+15d3pq+16pq-15pq-pq
17x2y-6y2z+12x2y+4y2z9t+4t2-6t+13t2-1
4675
—x+—t-—t-—x18t2-7pq+2t2-2
—ab+5n-9ab4mn-19a2b-10mn+2mn
8d-5d-6d3m-5c-4m+2c
2m-5n-14m-13n-17m+19n3mn+11mn+18mn-mn
15x2y-3b2c-19x2y-8b2c3z+5z2-7z-4z2+4
1675
—x+—y-—y+—x16m2+6ab+9m2-4
—xy-5n+9xy7pq+4x2y+12pq-28pq
3b+4b+4b2t-6e+6t-7e
2b+9d+19b+10d+18b+11d4xy+3xy-17xy+xy
15a2b+8y2z+8a2b+6y2z3m-7m2-3m+13m2-1
—x-—n-—n-—x6z2-2mn-6z2+1
2727
7
—ab+6x+8ab5ab-19a2b-13ab-19ab
7c-9c-5c4y-5f-3y+10f
6b-4c+10b-5c-14b+11c8pq+8pq-13pq+pq
10a2b+4y2z+11a2b-2y2z6y+3y2-9y-7y2+5
—x+—y+—y-—x6y2-3xy-7y2-1
4848
—mn+2n-8mn6ab+18x2y+20ab+23ab