å å¼å解(xï¼2)(xï¼3)ï¼(xï¼2)(xï¼4)ï¼ ã
41.å å¼å解2ax2ï¼3xï¼2axï¼3ï¼ ã
42.å å¼å解9x2ï¼66xï¼121ï¼ ã
43.å å¼å解8ï¼2x2ï¼ ã
44.å å¼å解x2ï¼xï¼14 ï¼ ã
45.å å¼å解9x2ï¼30xï¼25ï¼ ã
46.å å¼å解ï¼20x2ï¼9xï¼20ï¼ ã
47.å å¼å解12x2ï¼29xï¼15ï¼ ã
48.å å¼å解36x2ï¼39xï¼9ï¼ ã
49.å å¼å解21x2ï¼31xï¼22ï¼ ã
50.å å¼å解9x4ï¼35x2ï¼4ï¼ ã
51.å å¼å解(2xï¼1)(xï¼1)ï¼(2xï¼1)(xï¼3)ï¼ ã
52.å å¼å解2ax2ï¼3xï¼2axï¼3ï¼ ã
53.å å¼å解x(yï¼2)ï¼xï¼yï¼1ï¼ ã
54.å å¼å解(x2ï¼3x)ï¼(xï¼3)2ï¼ ã
55.å å¼å解9x2ï¼66xï¼121ï¼ ã
56.å å¼å解8ï¼2x2ï¼ ã
57.å å¼å解x4ï¼1ï¼ ã
58.å å¼å解x2ï¼4xï¼xyï¼2yï¼4ï¼ ã
59.å å¼å解4x2ï¼12xï¼5ï¼ ã
60.å å¼å解21x2ï¼31xï¼22ï¼ ã
61.å å¼å解4x2ï¼4xyï¼y2ï¼4xï¼2yï¼3ï¼ ã
62.å å¼å解9x5ï¼35x3ï¼4xï¼ ã
63.å å¼å解ä¸ååå¼ï¼
(1)3x2ï¼6xï¼ ã
(2)49x2ï¼25ï¼ ã
(3)6x2ï¼13xï¼5ï¼ ã
(4)x2ï¼2ï¼3xï¼ ã
(5)12x2ï¼23xï¼24ï¼ ã
(6)(xï¼6)(xï¼6)ï¼(xï¼6)ï¼ ã
(7)3(xï¼2)(xï¼5)ï¼(xï¼2)(xï¼3)ï¼ ã
(8)9x2ï¼42xï¼49ï¼ ã
(1)(xï¼2)ï¼2(xï¼2)2ï¼ ã
(2)36x2ï¼39xï¼9ï¼ ã
(3)2x2ï¼axï¼6xï¼3aï¼ ã
(4)22x2ï¼31xï¼21ï¼ ã
70.å å¼å解3ax2ï¼6axï¼ ã
71.å å¼å解(xï¼1)xï¼5xï¼ ã
72.å å¼å解(2xï¼1)(xï¼3)ï¼(2xï¼1)(xï¼5)ï¼
73.å å¼å解xyï¼2xï¼5yï¼10ï¼
74.å å¼å解x2y2ï¼x2ï¼y2ï¼6xyï¼4ï¼
x3ï¼2x2ï¼2xï¼1
a2b2ï¼a2ï¼b2ï¼1
(1)3ax2ï¼2xï¼3axï¼2
(x2ï¼3x)ï¼(xï¼3)2ï¼2xï¼6
1)(2xï¼3)(xï¼2)ï¼(xï¼1)(2xï¼3)
9x2ï¼66xï¼121
17.å å¼å解
(1)8x2ï¼18 (2)x2ï¼(aï¼b)xï¼ab
18.å å¼å解ä¸ååå¼
(1)9x4ï¼35x2ï¼4 (2)x2ï¼y2ï¼2yzï¼z2
(3)a(b2ï¼c2)ï¼c(a2ï¼b2)
19.å å¼å解(2xï¼1)(xï¼1)ï¼(2xï¼1)(xï¼3)
20.å å¼å解39x2ï¼38xï¼8
21.å©ç¨å å¼å解æ±(6512 )2ï¼(3412 )2ä¹å¼
22.å å¼å解a(b2ï¼c2)ï¼c(a2ï¼b2)
24.å å¼å解7(xï¼1)2ï¼4(xï¼1)(yï¼2)ï¼20(y+2)2
25.å å¼å解xy2ï¼2xyï¼3xï¼y2ï¼2yï¼1
26.å å¼å解4x2ï¼6axï¼18a2
27.å å¼å解20a3bcï¼9a2b2cï¼20ab3c
28.å å¼å解2ax2ï¼5xï¼2axï¼5
29.å å¼å解4x3ï¼4x2ï¼25xï¼25
30.å å¼å解(1ï¼xy)2ï¼(yï¼x)2
31.å å¼å解
(1)mx2ï¼m2ï¼xï¼1 (2)a2ï¼2abï¼b2ï¼1
32.å å¼å解ä¸ååå¼
(1)5x2ï¼45 (2)81x3ï¼9x (3)x2ï¼y2ï¼5xï¼5y (4)x2ï¼y2ï¼2yzï¼z2
33.å å¼å解ï¼xy2ï¼2xyï¼3xï¼y2ï¼2yï¼1
34.å å¼å解y2(xï¼y)ï¼z2(yï¼x)
1)å å¼å解x2ï¼xï¼y2ï¼yï¼2xyï¼
35.å å¼å解x2ï¼25ï¼ ã
36.å å¼å解x2ï¼20xï¼100ï¼ ã
37.å å¼å解x2ï¼4xï¼3ï¼ ã
38.å å¼å解4x2ï¼12xï¼5ï¼ ã
39.å å¼å解ä¸ååå¼ï¼
(1)3ax2ï¼6axï¼ ã
(2)x(xï¼2)ï¼xï¼ ã
(3)x2ï¼4xï¼axï¼4aï¼ ã
(4)25x2ï¼49ï¼ ã
(5)36x2ï¼60xï¼25ï¼ ã
(6)4x2ï¼12xï¼9ï¼ ã
(7)x2ï¼9xï¼18ï¼ ã
(8)2x2ï¼5xï¼3ï¼ ã
(9)12x2ï¼50xï¼8ï¼ ã
(1) çæ¡ï¼a(b�6�11)(ab+2b+a)
说æï¼(ab+b)2�6�1(a+b)2 = (ab+b+a+b)(ab+b�6�1a�6�1b) = (ab+2b+a)(ab�6�1a) = a(b�6�11)(ab+2b+a)ï¼
(2) çæ¡ï¼(x�6�1a)4
说æï¼(a2�6�1x2)2�6�14ax(x�6�1a)2
= [(a+x)(a�6�1x)]2�6�14ax(x�6�1a)2
= (a+x)2(a�6�1x)2�6�14ax(x�6�1a)2
= (x�6�1a)2[(a+x)2�6�14ax]
= (x�6�1a)2(a2+2ax+x2�6�14ax)
= (x�6�1a)2(x�6�1a)2 = (x�6�1a)4ï¼
(3) çæ¡ï¼7xn�6�11(x�6�11)2
说æï¼åå¼ = 7xn�6�11 �6�1x2�6�17xn�6�11 �6�12x+7xn�6�11 = 7xn�6�11(x2�6�12x+1) = 7xn�6�11(x�6�11)2ï¼ \\\\140ï¼m2(p-q)-p+q 141ï¼(2m+3n)(2m-n)-4n(2m-n)ï¼ 142ï¼(x+2y)2-x2-2xyï¼ 143ï¼a(ab+bc+ac)-abcï¼ 144ï¼ab-a-b+1ï¼ 145ï¼xyz-xy-xz+x-yz+y+z-1ï¼ 146ï¼x4-2y4-2x3y+xy3ï¼ 148ï¼abc(a2+b2+c2)-a3bc+2ab2c2ï¼ 149ï¼(a-b-c)(a+b-c)-(b-c-a)(b+c-a)ï¼ 150ï¼a2(b-c)+b2(c-a)+c2(a-b)ï¼ a(a+b)(a-b)-a(a+b)2ï¼ 152ï¼(x2-2x)2+2x(x-2)+1ï¼ 153ï¼2acd-c2a-ad2ï¼ 154ï¼(x-y)2+12(y-x)z+36z2ï¼ 156ï¼x2-4ax+8ab-4b2ï¼ 157ï¼a2b2+c2d2-2abcd+2ab-2cd+1ï¼ 158ï¼(ax+by)2+(ay-bx)2+2(ax+by)(ay-bx)ï¼ 160ï¼(1-a2)(1-b2)-(a2-1)2(b2-1)2ï¼ 161ï¼3x4-48y4ï¼ 162ï¼(x+1)2-9(x-1)2ï¼ 163ï¼(x2+pq)2-(p+q)2x2ï¼ 164ï¼(1+2xy)2-(x2+y2)2ï¼ 165ï¼4a2b2-(a2+b2)2ï¼ 166ï¼4a2b2-(a2+b2-c2)2ï¼ 167ï¼(c2-a2-b2)2-4a2b2ï¼ 168ï¼(x2-b2+y2-a2)2-4(ab-xy)2ï¼ 169ï¼64a4(x+1)2-49b4(x+1)4ï¼ 170ï¼ab2-ac2+4ac-4aï¼ 171ï¼4a2-c2+6ab+3bcï¼ 172ï¼x3n+y3nï¼ 174ï¼(x+y)3+125ï¼ 176ï¼(m-n)6-(m+n)6ï¼ 177ï¼(x+1)6-(x-1)6ï¼ 178ï¼a12-b12ï¼ 179ï¼(z-x)3-(y+z)3ï¼ 180ï¼(3m-2n)3+(3m+2n)3ï¼ 181ï¼x6(x2-y2)+y6(y2-x2)ï¼ 182ï¼8(x+y)3+1ï¼ 183ï¼(a-1)3-(b+1)3ï¼ 184ï¼(a+b+c)3-a3-b3-c3ï¼ 185ï¼x2+4xy+3y2ï¼ 186ï¼x2y2-18xy+65ï¼ 187ï¼x2+18x-144ï¼ 188ï¼x2+30x+144ï¼ 189ï¼x4+2x2-8ï¼ 190ï¼3x4+6x2-9ï¼ 191ï¼-m4+18m2-17ï¼ 192ï¼3x4-7x2y2-20y4ï¼ 193ï¼x5-2x3-8xï¼ 194ï¼a3-5a2b-300ab2ï¼ 195ï¼x8+19x5-216x2ï¼ 196ï¼6a4n+k-a2n+k-35akï¼ 199ï¼30x2+8xy-182y2ï¼ 200ï¼m4+14m2-15ï¼ çæ¡140ï¼ï¼p-qï¼ï¼m-1ï¼ï¼m+1ï¼ï¼ 141ï¼ï¼2m-nï¼2ï¼ 142ï¼2yï¼x+2yï¼ï¼ 143ï¼a2ï¼b+cï¼ï¼ 144ï¼ï¼b-1ï¼ï¼a-1ï¼ï¼ 145ï¼ï¼x-1ï¼ï¼y-1ï¼ï¼z-1ï¼ï¼æ示ï¼æ¹æ³ä¸ åå¼=xï¼yz-y-z+1ï¼-ï¼yz-y-z+1ï¼ =ï¼yz-y-z+1ï¼ï¼x-1ï¼ =[yï¼z-1ï¼-ï¼z-1ï¼]ï¼x-1ï¼ =ï¼x-1ï¼ï¼y-1ï¼ï¼z-1ï¼ï¼æ¹æ³äº åå¼=xyï¼z-1ï¼-xï¼z-1ï¼-yï¼z-1ï¼+ï¼z-1ï¼ =ï¼xy-x-y+1ï¼ï¼z-1ï¼ =[xï¼y-1ï¼-ï¼y-1ï¼]ï¼z-1ï¼ =ï¼x-1ï¼ï¼y-1ï¼ï¼z-1ï¼ï¼ 146ï¼ï¼x-2yï¼ï¼x+yï¼ï¼x2-xy+y2ï¼ï¼æ示ï¼æ¹æ³ä¸ åå¼=xï¼x3+y3ï¼-2yï¼x3+y3ï¼ =ï¼x3+y3ï¼ï¼x-2yï¼ =ï¼x-2yï¼ï¼x+yï¼ï¼x2-xy+y2ï¼ï¼æ¹æ³äº åå¼=x3ï¼x-2yï¼+y3ï¼x-2yï¼ =ï¼x-2yï¼ï¼x3+y3ï¼ =ï¼x-2yï¼ï¼x+yï¼ï¼x2-xy+y2ï¼ï¼ 148ï¼abcï¼b+cï¼2ï¼æ示ï¼åå¼=abcï¼a2+b2+c2-a2+2bcï¼ï¼ 149ï¼2ï¼b-cï¼ï¼a-b-cï¼ï¼æ示ï¼åå¼=ï¼a-b-cï¼ï¼a+b-cï¼+ï¼a-b-cï¼ï¼b-c-aï¼ =ï¼a-b-cï¼[ï¼a+b-cï¼+ï¼b-c-aï¼] =2ï¼b-cï¼ï¼a-b-cï¼ï¼ 150ï¼ï¼a-bï¼ï¼b-cï¼ï¼a-cï¼ï¼æ示ï¼åå¼=a2b-a2c+b2c-ab2+c2ï¼a-bï¼ =ï¼a2b-ab2ï¼-ï¼a2c-b2cï¼+c2ï¼a-bï¼ =abï¼a-bï¼-cï¼a2-b2ï¼+c2ï¼a-bï¼ =ï¼a-bï¼[ab-cï¼a+bï¼+c2] =ï¼a-bï¼[aï¼b-cï¼-cï¼b-cï¼] =ï¼a-bï¼ï¼b-cï¼ï¼a-cï¼ï¼æ示ï¼åå¼=aï¼a+bï¼[a-b-ï¼a+bï¼]=aï¼a+bï¼ï¼-2bï¼ =-2abï¼a+bï¼ï¼ 152ï¼ï¼x-1ï¼4ï¼æ示ï¼åå¼=[xï¼x-2ï¼]2+2�6�1xï¼x-2ï¼+12 =[xï¼x-2ï¼+1]2=ï¼x2-2x+1ï¼2 =ï¼x-1ï¼4ï¼ 153ï¼-aï¼c-dï¼2ï¼ 154ï¼ï¼x-y-6zï¼2ï¼ 156ï¼ï¼x-2bï¼ï¼x-4a+2bï¼ï¼ 157ï¼ï¼ab-cd+1ï¼2ï¼æ示ï¼åå¼=ï¼a2b2-2abcd+c2d2ï¼+2ï¼ab-cdï¼+1 =ï¼ab-cdï¼2+2ï¼ab-cdï¼+1 =ï¼ab-cd+1ï¼2ï¼ 158ï¼ï¼ax+by+ay-bxï¼2ï¼ 160ï¼ï¼1+aï¼ï¼1-aï¼ï¼1+bï¼ï¼1-bï¼ï¼a2+b2-a2b2ï¼ï¼ 161ï¼3ï¼x2+4y2ï¼ï¼x+2yï¼ï¼x-2yï¼ï¼ 162ï¼4ï¼2x-1ï¼ï¼2-xï¼ï¼ 163ï¼ï¼x2+px+qx+pqï¼ï¼x2-px-qx+pqï¼ï¼ 164ï¼ï¼1+x-yï¼ï¼1-x+yï¼ï¼x2+y2+2xy+1ï¼ï¼ 165ï¼-ï¼a+bï¼2ï¼a-bï¼2ï¼ 166ï¼ï¼a+b+cï¼ï¼a+b-cï¼ï¼c+a-bï¼ï¼c-a+bï¼ï¼æ示ï¼åå¼=ï¼2ab+a2+b2-c2ï¼ï¼2ab-a2-b2+c2ï¼ =[ï¼a+bï¼2-c2][c2-ï¼a-bï¼2] =ï¼a+b+cï¼ï¼a+b-cï¼ï¼c+a-bï¼ï¼c-a+bï¼ï¼ 167ï¼ï¼c+a-bï¼ï¼c-a+bï¼ï¼c+a+bï¼ï¼c-a-bï¼ï¼ 168ï¼ï¼x+y+a+bï¼ï¼x+y-a-bï¼ï¼x-y+a-bï¼ï¼x-y-a+bï¼ï¼æ示ï¼åå¼=ï¼x2-b2+y2-a2+2ab-2xyï¼ï¼x2-b2+y2-a2-2ab+2xyï¼ =[ï¼x2-2xy+y2ï¼-ï¼a2-2ab+b2ï¼][ï¼x2+2xy+y2ï¼ -ï¼a2+2ab+b2ï¼] =[ï¼x-yï¼2-ï¼a-bï¼2][ï¼x+yï¼2-ï¼a+bï¼2] =ï¼x-y+a-bï¼ï¼x-y-a+bï¼ï¼x+y+a+bï¼ï¼x+y-a-bï¼ï¼ 169ï¼ï¼x+1ï¼2ï¼8a2+7b2x+7b2ï¼ï¼8a2-7b2x-7b2ï¼ï¼ 170ï¼aï¼b-c+2ï¼ï¼b+c-2ï¼ï¼æ示ï¼åå¼=aï¼b2-c2+4c-4ï¼ =aï¼b2-c2+2b-2b+2c+2c-4ï¼ =a[ï¼b-cï¼ï¼b+cï¼-2ï¼b-cï¼+2ï¼b+cï¼-4] =a[ï¼b-cï¼+2][ï¼b+cï¼-2]ï¼ 171ï¼ï¼2a+cï¼ï¼2a-c+3bï¼ï¼ 172ï¼ï¼xn+ynï¼ï¼x2n-xnyn+y2nï¼ï¼ 174ï¼ï¼x+y+5ï¼ï¼x2+2xy+y2-5x-5y+25ï¼ï¼ 176ï¼-4mnï¼3n2+m2ï¼ï¼3m2+n2ï¼ï¼æ示ï¼åå¼=[ï¼m-nï¼3]2-[ï¼m+nï¼3]2 =[ï¼m-nï¼3+ï¼m+nï¼3][ï¼m-nï¼3-ï¼m+nï¼3] =2m[ï¼m-nï¼2-ï¼m-nï¼ï¼m+nï¼ï¼m+nï¼2] Ã{-2n[ï¼m-nï¼2+ï¼m-nï¼ï¼m+nï¼+ï¼m+nï¼2]} =-4mnï¼m2+3n2ï¼ï¼3m2+n2ï¼ï¼ 177ï¼4xï¼x2+3ï¼ï¼3x2+1ï¼ï¼æ示ï¼åå¼=[ï¼x+1ï¼3]2-[ï¼x-1ï¼3]2 =[ï¼x+1ï¼3+ï¼x-1ï¼3][ï¼x+1ï¼3-ï¼x-1ï¼3] =2x[ï¼x+1ï¼2-ï¼x+1ï¼ï¼x-1ï¼+ï¼x-1ï¼2] Ã2[ï¼x+1ï¼2+ï¼x+1ï¼ï¼x-1ï¼+ï¼x-1ï¼2] =4xï¼x2+3ï¼ï¼3x2+1ï¼ï¼ 178ï¼ï¼a-bï¼ï¼a+bï¼ï¼a2+b2ï¼ï¼a2+ab+b2ï¼ï¼a2-ab+b2ï¼ï¼a4-a2b2+b4ï¼ï¼æ示ï¼åå¼=ï¼a6ï¼2-ï¼b6ï¼2=ï¼a6+b6ï¼ï¼a6-b6ï¼ =[ï¼a2ï¼3+ï¼b2ï¼3][ï¼a3ï¼2-ï¼b3ï¼2] =ï¼a2+b2ï¼ï¼a4-a2b2+b4ï¼ï¼a3+b3ï¼ï¼a3-b3ï¼ï¼ 179ï¼-ï¼x+yï¼ï¼x2+y2+3z2-xy+3yz-3xzï¼ï¼ 180ï¼18mï¼3m2+4n2ï¼ï¼ 181ï¼ï¼x+yï¼2ï¼x-yï¼2ï¼x2-xy+y2ï¼ï¼x2+xy+y2ï¼ï¼æ示ï¼åå¼=ï¼x2-y2ï¼ï¼x6-y6ï¼ =ï¼x+yï¼ï¼x-yï¼ï¼x3+y3ï¼ï¼x3-y3ï¼ï¼ 182ï¼ï¼2x+2y+1ï¼ï¼4x2+8xy+4y2-2x-2y+1ï¼ï¼ 183ï¼ï¼a-b-2ï¼ï¼a2+ab+b2-a+b+1ï¼ï¼ 184ï¼3ï¼b+cï¼ï¼a+bï¼ï¼c+aï¼ï¼æ示ï¼åå¼=[ï¼a+b+cï¼3-a3]-ï¼b3+c3ï¼ï¼ 185ï¼ï¼x+3yï¼ï¼x+yï¼ï¼ 186ï¼ï¼xy-13ï¼ï¼xy-5ï¼ï¼ 187ï¼ï¼x-6ï¼ï¼x+24ï¼ï¼ 188ï¼ï¼x+6ï¼ï¼x+24ï¼ï¼ 189ï¼ï¼x2-2ï¼ï¼x2+4ï¼ï¼ 190ï¼3ï¼x2+3ï¼ï¼x+1ï¼ï¼x-1ï¼ï¼ 191ï¼ï¼m2-17ï¼ï¼1+mï¼ï¼1-mï¼ï¼ 192ï¼ï¼3x2+5y2ï¼ï¼x+2yï¼ï¼x-2yï¼ï¼ 193ï¼xï¼x+2ï¼ï¼x-2ï¼ï¼x2+2ï¼ï¼ 194ï¼aï¼a-20bï¼ï¼a+15bï¼ï¼ 195ï¼x2ï¼x+3ï¼ï¼x2-3x+9ï¼ï¼x-2ï¼ï¼x2+2x+4ï¼ï¼æ示ï¼åå¼=x2ï¼x6+19x3-216ï¼ =x2ï¼x3+27ï¼ï¼x3-8ï¼ =x3ï¼x+3ï¼ï¼x2-3x+9ï¼ï¼x-2ï¼ï¼x2+2x+4ï¼ï¼ 196ï¼akï¼2a2n-5ï¼ï¼3a2n+7ï¼ï¼ 199ï¼2ï¼3x-7yï¼ï¼5x+13yï¼ï¼ 200ï¼ï¼m2+15ï¼ï¼m+1ï¼ï¼m-1ï¼ï¼ 201ï¼m2(pï¼q)ï¼pï¼qï¼ 202ï¼a(abï¼bcï¼ac)ï¼abcï¼ 203ï¼x4ï¼2y4ï¼2x3yï¼xy3ï¼ 204ï¼abc(a2ï¼b2ï¼c2)ï¼a3bcï¼2ab2c2ï¼ 205ï¼a2(bï¼c)ï¼b2(cï¼a)ï¼c2(aï¼b)ï¼ 206ï¼(x2ï¼2x)2ï¼2x(xï¼2)ï¼1ï¼ 207ï¼(xï¼y)2ï¼12(yï¼x)zï¼36z2ï¼ 208ï¼x2ï¼4axï¼8abï¼4b2ï¼ 209ï¼(axï¼by)2ï¼(ayï¼bx)2ï¼2(axï¼by)(ayï¼bx)ï¼ 210ï¼(1ï¼a2)(1ï¼b2)ï¼(a2ï¼1)2(b2ï¼1)2ï¼ 211ï¼(xï¼1)2ï¼9(xï¼1)2ï¼ 212ï¼4a2b2ï¼(a2ï¼b2ï¼c2)2ï¼ 213ï¼ab2ï¼ac2ï¼4acï¼4aï¼ 214ï¼x3nï¼y3nï¼ 215ï¼(xï¼y)3ï¼125ï¼ 216ï¼(3mï¼2n)3ï¼(3mï¼2n)3ï¼ 217ï¼x6(x2ï¼y2)ï¼y6(y2ï¼x2)ï¼ 218ï¼8(xï¼y)3ï¼1ï¼ 219ï¼(aï¼bï¼c)3ï¼a3ï¼b3ï¼c3ï¼ 220ï¼x2ï¼4xyï¼3y2ï¼ 221ï¼x2ï¼18xï¼144ï¼ 222ï¼x4ï¼2x2ï¼8ï¼ 223ï¼ï¼m4ï¼18m2ï¼17ï¼ 224ï¼x5ï¼2x3ï¼8xï¼ 225ï¼x8ï¼19x5ï¼216x2ï¼ 226ï¼(x2ï¼7x)2ï¼10(x2ï¼7x)ï¼24ï¼ 227ï¼5ï¼7(aï¼1)ï¼6(aï¼1)2ï¼ 228ï¼(x2ï¼x)(x2ï¼xï¼1)ï¼2ï¼ 229ï¼x2ï¼y2ï¼x2y2ï¼4xyï¼1ï¼ 230ï¼(xï¼1)(xï¼2)(xï¼3)(xï¼4)ï¼48ï¼ 231ï¼x2ï¼y2ï¼xï¼yï¼ 232ï¼ax2ï¼bx2ï¼bxï¼axï¼3aï¼3bï¼ 233ï¼m4ï¼m2ï¼1ï¼ 234ï¼a2ï¼b2ï¼2acï¼c2ï¼ 235ï¼a3ï¼ab2ï¼aï¼bï¼ 236ï¼625b4ï¼(aï¼b)4ï¼ 237ï¼x6ï¼y6ï¼3x2y4ï¼3x4y2ï¼ 238ï¼x2ï¼4xyï¼4y2ï¼2xï¼4yï¼35ï¼ 239ï¼m2ï¼a2ï¼4abï¼4b2ï¼ 240ï¼5mï¼5nï¼m2ï¼2mnï¼n2ï¼åèçæ¡: ä¸ãå å¼åè§£ï¼ 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
åèèµæï¼
http://wenku.baidu.com/search?word=%D2%F2%CA%BD%B7%D6%BD%E2&lm=0&od=0