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Aï¼a2bï¼7abï¼bï¼b(a2ï¼7a)
Bï¼3x2yï¼3xyï¼6y=3y(xï¼2)(xï¼1)
Cï¼8xyzï¼6x2y2ï¼2xyz(4ï¼3xy)
Dï¼ï¼2a2ï¼4abï¼6acï¼ï¼2a(aï¼2bï¼3c)
2ï¼å¤é¡¹å¼m(nï¼2)ï¼m2(2ï¼n)å解å å¼çäº
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Aï¼(nï¼2)(mï¼m2) Bï¼(nï¼2)(mï¼m2)
Cï¼m(nï¼2)(mï¼1) Dï¼m(nï¼2)(mï¼1)
3ï¼å¨ä¸åçå¼ä¸ï¼å±äºå å¼å解çæ¯
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Aï¼a(xï¼y)ï¼b(mï¼n)ï¼axï¼bmï¼ayï¼bn
Bï¼a2ï¼2abï¼b2ï¼1=(aï¼b)2ï¼1
Cï¼ï¼4a2ï¼9b2ï¼(ï¼2aï¼3b)(2aï¼3b)
Dï¼x2ï¼7xï¼8=x(xï¼7)ï¼8
4ï¼ä¸ååå¼ä¸ï¼è½ç¨å¹³æ¹å·®å
¬å¼å解å å¼çæ¯
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Aï¼a2ï¼b2 Bï¼ï¼a2ï¼b2
Cï¼ï¼a2ï¼b2 Dï¼ï¼(ï¼a2)ï¼b2
5ï¼è¥9x2ï¼mxyï¼16y2æ¯ä¸ä¸ªå®å
¨å¹³æ¹å¼ï¼é£ä¹mçå¼æ¯
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Aï¼ï¼12 Bï¼Â±24
Cï¼12 Dï¼Â±12
6ï¼æå¤é¡¹å¼an+4ï¼an+1å解å¾
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Aï¼an(a4ï¼a) Bï¼an-1(a3ï¼1)
Cï¼an+1(aï¼1)(a2ï¼aï¼1) Dï¼an+1(aï¼1)(a2ï¼aï¼1)
7ï¼è¥a2ï¼aï¼ï¼1ï¼åa4ï¼2a3ï¼3a2ï¼4aï¼3çå¼ä¸º
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Aï¼8 Bï¼7
Cï¼10 Dï¼12
8ï¼å·²ç¥x2ï¼y2ï¼2xï¼6yï¼10=0ï¼é£ä¹xï¼yçå¼åå«ä¸º
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Aï¼x=1ï¼y=3 Bï¼x=1ï¼y=ï¼3
Cï¼x=ï¼1ï¼y=3 Dï¼x=1ï¼y=ï¼3
9ï¼æ(m2ï¼3m)4ï¼8(m2ï¼3m)2ï¼16å解å å¼å¾
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Aï¼(mï¼1)4(mï¼2)2 Bï¼(mï¼1)2(mï¼2)2(m2ï¼3mï¼2)
Cï¼(mï¼4)2(mï¼1)2 Dï¼(mï¼1)2(mï¼2)2(m2ï¼3mï¼2)2
10ï¼æx2ï¼7xï¼60å解å å¼ï¼å¾
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Aï¼(xï¼10)(xï¼6) Bï¼(xï¼5)(xï¼12)
Cï¼(xï¼3)(xï¼20) Dï¼(xï¼5)(xï¼12)
11ï¼æ3x2ï¼2xyï¼8y2å解å å¼ï¼å¾
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Aï¼(3xï¼4)(xï¼2) Bï¼(3xï¼4)(xï¼2)
Cï¼(3xï¼4y)(xï¼2y) Dï¼(3xï¼4y)(xï¼2y)
12ï¼æa2ï¼8abï¼33b2å解å å¼ï¼å¾
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Aï¼(aï¼11)(aï¼3) Bï¼(aï¼11b)(aï¼3b)
Cï¼(aï¼11b)(aï¼3b) Dï¼(aï¼11b)(aï¼3b)
13ï¼æx4ï¼3x2ï¼2å解å å¼ï¼å¾
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Aï¼(x2ï¼2)(x2ï¼1) Bï¼(x2ï¼2)(xï¼1)(xï¼1)
Cï¼(x2ï¼2)(x2ï¼1) Dï¼(x2ï¼2)(xï¼1)(xï¼1)
14ï¼å¤é¡¹å¼x2ï¼axï¼bxï¼abå¯å解å å¼ä¸º
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Aï¼ï¼(xï¼a)(xï¼b) Bï¼(xï¼a)(xï¼b)
Cï¼(xï¼a)(xï¼b) Dï¼(xï¼a)(xï¼b)
15ï¼ä¸ä¸ªå
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¶x2项çç³»æ°æ¯1ï¼å¸¸æ°é¡¹æ¯ï¼12ï¼ä¸è½å解å å¼ï¼è¿æ ·çäºæ¬¡ä¸é¡¹å¼æ¯
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Aï¼x2ï¼11xï¼12æx2ï¼11xï¼12
Bï¼x2ï¼xï¼12æx2ï¼xï¼12
Cï¼x2ï¼4xï¼12æx2ï¼4xï¼12
Dï¼ä»¥ä¸é½å¯ä»¥
16ï¼ä¸ååå¼x3ï¼x2ï¼xï¼1ï¼x2ï¼yï¼xyï¼xï¼x2ï¼2xï¼y2ï¼1ï¼(x2ï¼3x)2ï¼(2xï¼1)2ä¸ï¼ä¸å«æ(xï¼1)å å¼çæ
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Aï¼1个 Bï¼2个
Cï¼3个 Dï¼4个
17ï¼æ9ï¼x2ï¼12xyï¼36y2å解å å¼ä¸º
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Aï¼(xï¼6yï¼3)(xï¼6xï¼3)
Bï¼ï¼(xï¼6yï¼3)(xï¼6yï¼3)
Cï¼ï¼(xï¼6yï¼3)(xï¼6yï¼3)
Dï¼ï¼(xï¼6yï¼3)(xï¼6yï¼3)
18ï¼ä¸åå å¼å解é误çæ¯
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Aï¼a2ï¼bcï¼acï¼ab=(aï¼b)(aï¼c)
Bï¼abï¼5aï¼3bï¼15=(bï¼5)(aï¼3)
Cï¼x2ï¼3xyï¼2xï¼6y=(xï¼3y)(xï¼2)
Dï¼x2ï¼6xyï¼1ï¼9y2=(xï¼3yï¼1)(xï¼3yï¼1)
19ï¼å·²ç¥a2x2±2xï¼b2æ¯å®å
¨å¹³æ¹å¼ï¼ä¸aï¼bé½ä¸ä¸ºé¶ï¼åaä¸bçå
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Aï¼äºä¸ºåæ°æäºä¸ºè´åæ° Bï¼äºä¸ºç¸åæ°
Cï¼ç¸ççæ° Dï¼ä»»ææçæ°
20ï¼å¯¹x4ï¼4è¿è¡å å¼å解ï¼æå¾çæ£ç¡®ç»è®ºæ¯
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Aï¼ä¸è½å解å å¼ Bï¼æå å¼x2ï¼2xï¼2
Cï¼(xyï¼2)(xyï¼8) Dï¼(xyï¼2)(xyï¼8)
21ï¼æa4ï¼2a2b2ï¼b4ï¼a2b2å解å å¼ä¸º
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Aï¼(a2ï¼b2ï¼ab)2 Bï¼(a2ï¼b2ï¼ab)(a2ï¼b2ï¼ab)
Cï¼(a2ï¼b2ï¼ab)(a2ï¼b2ï¼ab) Dï¼(a2ï¼b2ï¼ab)2
22ï¼ï¼(3xï¼1)(xï¼2y)æ¯ä¸ååªä¸ªå¤é¡¹å¼çå解ç»æ
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Aï¼3x2ï¼6xyï¼xï¼2y Bï¼3x2ï¼6xyï¼xï¼2y
Cï¼xï¼2yï¼3x2ï¼6xy Dï¼xï¼2yï¼3x2ï¼6xy
23ï¼64a8ï¼b2å å¼å解为
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Aï¼(64a4ï¼b)(a4ï¼b) Bï¼(16a2ï¼b)(4a2ï¼b)
Cï¼(8a4ï¼b)(8a4ï¼b) Dï¼(8a2ï¼b)(8a4ï¼b)
24ï¼9(xï¼y)2ï¼12(x2ï¼y2)ï¼4(xï¼y)2å å¼å解为
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Aï¼(5xï¼y)2 Bï¼(5xï¼y)2
Cï¼(3xï¼2y)(3xï¼2y) Dï¼(5xï¼2y)2
25ï¼(2yï¼3x)2ï¼2(3xï¼2y)ï¼1å å¼å解为
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Aï¼(3xï¼2yï¼1)2 Bï¼(3xï¼2yï¼1)2
Cï¼(3xï¼2yï¼1)2 Dï¼(2yï¼3xï¼1)2
26ï¼æ(aï¼b)2ï¼4(a2ï¼b2)ï¼4(aï¼b)2å解å å¼ä¸º
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Aï¼(3aï¼b)2 Bï¼(3bï¼a)2
Cï¼(3bï¼a)2 Dï¼(3aï¼b)2
27ï¼æa2(bï¼c)2ï¼2ab(aï¼c)(bï¼c)ï¼b2(aï¼c)2å解å å¼ä¸º
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Aï¼c(aï¼b)2 Bï¼c(aï¼b)2
Cï¼c2(aï¼b)2 Dï¼c2(aï¼b)
28ï¼è¥4xyï¼4x2ï¼y2ï¼kæä¸ä¸ªå å¼ä¸º(1ï¼2xï¼y)ï¼åkçå¼ä¸º
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Aï¼0 Bï¼1
Cï¼ï¼1 Dï¼4
29ï¼å解å å¼3a2xï¼4b2yï¼3b2xï¼4a2yï¼æ£ç¡®çæ¯
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Aï¼ï¼(a2ï¼b2)(3xï¼4y) Bï¼(aï¼b)(aï¼b)(3xï¼4y)
Cï¼(a2ï¼b2)(3xï¼4y) Dï¼(aï¼b)(aï¼b)(3xï¼4y)
30ï¼å解å å¼2a2ï¼4abï¼2b2ï¼8c2ï¼æ£ç¡®çæ¯
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Aï¼2(aï¼bï¼2c) Bï¼2(aï¼bï¼c)(aï¼bï¼c)
Cï¼(2aï¼bï¼4c)(2aï¼bï¼4c) Dï¼2(aï¼bï¼2c)(aï¼bï¼2c)
ä¸ãå å¼å解ï¼
1ï¼m2(pï¼q)ï¼pï¼qï¼
2ï¼a(abï¼bcï¼ac)ï¼abcï¼
3ï¼x4ï¼2y4ï¼2x3yï¼xy3ï¼
4ï¼abc(a2ï¼b2ï¼c2)ï¼a3bcï¼2ab2c2ï¼
5ï¼a2(bï¼c)ï¼b2(cï¼a)ï¼c2(aï¼b)ï¼
6ï¼(x2ï¼2x)2ï¼2x(xï¼2)ï¼1ï¼
7ï¼(xï¼y)2ï¼12(yï¼x)zï¼36z2ï¼
8ï¼x2ï¼4axï¼8abï¼4b2ï¼
9ï¼(axï¼by)2ï¼(ayï¼bx)2ï¼2(axï¼by)(ayï¼bx)ï¼
10ï¼(1ï¼a2)(1ï¼b2)ï¼(a2ï¼1)2(b2ï¼1)2ï¼
11ï¼(xï¼1)2ï¼9(xï¼1)2ï¼
12ï¼4a2b2ï¼(a2ï¼b2ï¼c2)2ï¼
13ï¼ab2ï¼ac2ï¼4acï¼4aï¼
14ï¼x3nï¼y3nï¼
15ï¼(xï¼y)3ï¼125ï¼
16ï¼(3mï¼2n)3ï¼(3mï¼2n)3ï¼
17ï¼x6(x2ï¼y2)ï¼y6(y2ï¼x2)ï¼
18ï¼8(xï¼y)3ï¼1ï¼
19ï¼(aï¼bï¼c)3ï¼a3ï¼b3ï¼c3ï¼
20ï¼x2ï¼4xyï¼3y2ï¼
21ï¼x2ï¼18xï¼144ï¼
22ï¼x4ï¼2x2ï¼8ï¼
23ï¼ï¼m4ï¼18m2ï¼17ï¼
24ï¼x5ï¼2x3ï¼8xï¼
25ï¼x8ï¼19x5ï¼216x2ï¼
26ï¼(x2ï¼7x)2ï¼10(x2ï¼7x)ï¼24ï¼
27ï¼5ï¼7(aï¼1)ï¼6(aï¼1)2ï¼
28ï¼(x2ï¼x)(x2ï¼xï¼1)ï¼2ï¼
29ï¼x2ï¼y2ï¼x2y2ï¼4xyï¼1ï¼
30ï¼(xï¼1)(xï¼2)(xï¼3)(xï¼4)ï¼48ï¼
31ï¼x2ï¼y2ï¼xï¼yï¼
32ï¼ax2ï¼bx2ï¼bxï¼axï¼3aï¼3bï¼
33ï¼m4ï¼m2ï¼1ï¼
34ï¼a2ï¼b2ï¼2acï¼c2ï¼
35ï¼a3ï¼ab2ï¼aï¼bï¼
36ï¼625b4ï¼(aï¼b)4ï¼
37ï¼x6ï¼y6ï¼3x2y4ï¼3x4y2ï¼
38ï¼x2ï¼4xyï¼4y2ï¼2xï¼4yï¼35ï¼
39ï¼m2ï¼a2ï¼4abï¼4b2ï¼
40ï¼5mï¼5nï¼m2ï¼2mnï¼n2ï¼
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1ï¼å·²ç¥aï¼b=0ï¼æ±a3ï¼2b3ï¼a2bï¼2ab2çå¼ï¼
2ï¼æ±è¯ï¼å个è¿ç»èªç¶æ°ç积åå ä¸1ï¼ä¸å®æ¯ä¸ä¸ªå®å
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3ï¼è¯æï¼(acï¼bd)2ï¼(bcï¼ad)2=(a2ï¼b2)(c2ï¼d2)ï¼
4ï¼å·²ç¥a=kï¼3ï¼b=2kï¼2ï¼c=3kï¼1ï¼æ±a2ï¼b2ï¼c2ï¼2abï¼2bcï¼2acçå¼ï¼
5ï¼è¥x2ï¼mxï¼n=(xï¼3)(xï¼4)ï¼æ±(mï¼n)2çå¼ï¼
6ï¼å½a为ä½å¼æ¶ï¼å¤é¡¹å¼x2ï¼7xyï¼ay2ï¼5xï¼43yï¼24å¯ä»¥å解为两个ä¸æ¬¡å å¼çä¹ç§¯ï¼
7ï¼è¥xï¼y为任ææçæ°ï¼æ¯è¾6xyä¸x2ï¼9y2ç大å°ï¼
8ï¼ä¸¤ä¸ªè¿ç»å¶æ°çå¹³æ¹å·®æ¯4çåæ°ï¼
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7ï¼9ï¼(3aï¼1)
10ï¼xï¼5yï¼xï¼5yï¼xï¼5yï¼2aï¼b
11ï¼ï¼5ï¼ï¼2
12ï¼ï¼1ï¼ï¼2(æï¼2ï¼ï¼1)
14ï¼bcï¼acï¼aï¼bï¼aï¼c
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1ï¼(pï¼q)(mï¼1)(mï¼1)ï¼
8ï¼(xï¼2b)(xï¼4aï¼2b)ï¼
11ï¼4(2xï¼1)(2ï¼x)ï¼
20ï¼(xï¼3y)(xï¼y)ï¼
21ï¼(xï¼6)(xï¼24)ï¼
27ï¼(3ï¼2a)(2ï¼3a)ï¼
31ï¼(xï¼y)(xï¼yï¼1)ï¼
38ï¼(xï¼2yï¼7)(xï¼2yï¼5)ï¼
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2ï¼æ示ï¼è®¾å个è¿ç»èªç¶æ°ä¸ºnï¼nï¼1ï¼nï¼2ï¼nï¼3
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