初一数学上册合并同类项专项练习题26.docx
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初一数学上册合并同类项专项练习题26
4f+3f+4f3n+9b-2n+2b
7m-7d+10m-5d-14m+15d2pq-10pq-13pq-pq
20a2b-9b2c-9a2b+4b2c4x+4x2+9x+13x2+8
1875
—x+—n+—n-—x12t2+8xy-7t2-3
5757
1
—pq+4y-5pq5mn-18x2y+18mn+24mn
5
2e-9e-6e9n-7a-2n-6a
3b-9c+6b+10c-20b-13c7mn-12mn+20mn+mn
8x2y+2b2c+25x2y+2b2c2x+5x2-7x+10x2-5
3175
—x+—y-—y-—x16y2-3mn+4y2-3
4646
7
—xy-7x-8xy9mn+13x2y+11mn-6mn
6
6e+4e-9e4z-6e-8z-2e
8b-3c-9b+8c-15b-15c5xy+20xy-13xy-xy
3x2y+6b2c+12x2y+9b2c5m+8m2-4m+12m2+2
4575
—z-—t-—t-—z2z2+9xy+3z2+7
3636
1
—ab+4t-9ab2mn+3x2y+14mn-11mn
4
5a-2a-3a2y-4d-8y+4d
9b-6c+6b-11c-16b-15c2mn+5mn+19mn-mn
25a2b-2y2z+21a2b+4y2z9y-5y2+9y+13y2+1
4175
—x+—y+—y-—x4n2+2mn-9n2+5
5757
3
—pq+2z-2pq7xy+15a2b+13xy+8xy
4
3e-6e-9e2z-5a+2z-8a
3a-3c+16a+9c+19a+11c9ab+10ab+13ab-ab
24x2y-2b2c+14x2y-5b2c5m-3m2-4m+14m2-1
4675
—m-—t+—t+—m16m2-4ab+4m2-1
5757
1
—mn-5y-7mn5ab+18x2y-16ab+15ab
3
2b+4b+7b3z+4a+8z-7a
8a-9c+12a+13c-16a+20c5ab+7ab-20ab-ab
15x2y+6y2z+13x2y+7y2z2y+2y2+6y-7y2+7
1175
—m+—y-—y-—m11t2+2mn-3t2+9
2727
2
—mn-8m+6mn6pq+9a2b-10pq-25pq
3
7e+6e-6e7x+4c-9x-4c
7b+4c+4b-15c-13b-14c4pq+8pq+11pq-pq
9a2b-9b2c-11a2b-2b2c4t-4t2+7t+18t2+8
4175
—z-—y+—y-—z4m2-4ab-6m2+8
3737
1
—ab+4z+4ab6mn+5x2y+2mn-25mn
4
2e+7e+4e4y+7c-5y+10c
7b+8d+5b+9d-18b-19d8mn+2mn-19mn+mn
17a2b-4b2c+29a2b-2b2c8x-9x2-6x+12x2+3
2175
—m-—n-—n-—m18z2+9ab-8z2-7
3636
1
—xy+8x-4xy8xy+8x2y+12xy+14xy
3
6c+4c-9c8x-2d-7x+10d
3m+9c+4m-19c+19m+17c9pq-9pq+18pq-pq
11x2y-6b2c+27x2y+8b2c6z+9z2-3z-17z2-2
6875
—z+—y+—y+—z7z2-9xy+5z2+1
5757
1
—xy+7t-6xy7ab+20a2b-12ab+18ab
6
6a+2a+3a10t-8d-7t-3d
5a+3d+10a+2d+17a+10d3ab-17ab-12ab-ab
19x2y+4b2c+7x2y+8b2c4y+8y2+4y-7y2-5
1175
—x+—n-—n+—x20y2+6xy+3y2-3
5656
1
—ab-4x-6ab2xy+12a2b+8xy+4xy
8
5f-2f+4f6m-2f+8m+8f
5b+2n-15b-9n-14b+18n7xy-7xy-17xy-xy
18a2b+2y2z+28a2b+9y2z8m-5m2+5m-18m2-7
4175
—m-—t+—t-—m2n2+3pq+7n2-1
5858
1
—pq-9z+5pq8xy+6a2b+5xy-25xy
2
5e-8e+6e5y-4e+9y+5e
6b-8d+19b+14d+12b-11d4ab-6ab-11ab-ab
29a2b-7b2c-2a2b+3b2c7n+8n2+7n+13n2+9
3775
—m+—n+—n-—m11x2-6ab+4x2+2
4848
1
—pq-5y+2pq5mn+17x2y-15mn+2mn
4