(x-1)+b^2(1-X)
(x^2+2x)^2-(2x+4)^2
(x^2+2x)^2+2(x^2+2x)+1
m^2/9-2mn/3=n^2
(x+y)^2-18(x+y)+81
4-12(x-y)+9(x-y)^2
4xy^2-4x^2y-y^3
3-6x+3x^2
-a+2a^2-a^3
a^2-2a(b+c)+(b+c)^2
a^2(2a-3)+b^2(3-2a)
(x^2+16y^2)^2-64x^2y^2
16x^5-8x^3y^2+xy^4
a^5b^5-2a^3b^3+ab
(x^2-x)-(x-1)^2
几道因式分解题,做做很快的!!能追加分!!!~~~~~~~求解,,急急急~~~~~~!!!!!!!!!!!!!!
答案:4 悬赏:40
解决时间 2021-03-21 02:02
- 提问者网友:恋你成殇
- 2021-03-20 18:18
最佳答案
- 二级知识专家网友:强势废物
- 2021-03-20 18:41
(x-1)+b^2(1-X)=(x-1)(1+b^2)
(x^2+2x)^2-(2x+4)^2=(x^2+2x+2x+4)(x^2+2x-2x-4)=(x+2)^2(x+2)(x-2)
(x^2+2x)^2+2(x^2+2x)+1=(x^2+2x+1)^2=(x+1)^4
m^2/9-2mn/3=n^2
(m/3-n)^2=0
m/3=n
(x+y)^2-18(x+y)+81=(x+y-9)^2
4-12(x-y)+9(x-y)^2=(3(x-y)-4)^2
4xy^2-4x^2y-y^3=-y(4x^2-4xy+y^2)=-y*(2x-y)^2
3-6x+3x^2=3(1-2x+x^2)=3(1-x)^2
-a+2a^2-a^3=-a(1-2a+a^2)=-a(1-a)^2
a^2-2a(b+c)+(b+c)^2=(a-(b+c))^2
a^2(2a-3)+b^2(3-2a)=-(2a-3)(a^2-b^2)=-(2a-3)(a-b)(a+b)
(x^2+16y^2)^2-64x^2y^2=(x^2-y^2)^2
16x^5-8x^3y^2+xy^4=x(4x^2-y^2)^2
a^5b^5-2a^3b^3+ab=ab(a^2b^2-1)^2
(x^2-x)-(x-1)^2=x(x-1)-(x-1)^2=(x-1)(x-x+1)=x-1
(x^2+2x)^2-(2x+4)^2=(x^2+2x+2x+4)(x^2+2x-2x-4)=(x+2)^2(x+2)(x-2)
(x^2+2x)^2+2(x^2+2x)+1=(x^2+2x+1)^2=(x+1)^4
m^2/9-2mn/3=n^2
(m/3-n)^2=0
m/3=n
(x+y)^2-18(x+y)+81=(x+y-9)^2
4-12(x-y)+9(x-y)^2=(3(x-y)-4)^2
4xy^2-4x^2y-y^3=-y(4x^2-4xy+y^2)=-y*(2x-y)^2
3-6x+3x^2=3(1-2x+x^2)=3(1-x)^2
-a+2a^2-a^3=-a(1-2a+a^2)=-a(1-a)^2
a^2-2a(b+c)+(b+c)^2=(a-(b+c))^2
a^2(2a-3)+b^2(3-2a)=-(2a-3)(a^2-b^2)=-(2a-3)(a-b)(a+b)
(x^2+16y^2)^2-64x^2y^2=(x^2-y^2)^2
16x^5-8x^3y^2+xy^4=x(4x^2-y^2)^2
a^5b^5-2a^3b^3+ab=ab(a^2b^2-1)^2
(x^2-x)-(x-1)^2=x(x-1)-(x-1)^2=(x-1)(x-x+1)=x-1
全部回答
- 1楼网友:一场云烟
- 2021-03-20 21:56
(x-1)+b^2(1-X)
=(x-1)(1-b^2)
=(x-1)(1-b)(1+b)
- 2楼网友:浪者不回头
- 2021-03-20 21:00
如果1/x2+1/y2=13/36,xy=6,求 x2+y2的值
1/x^2+1/y^2=(x^2+y^2)/(x^2y^2)=(x^2+y^2)/(xy)^2=(x^2+y^2)/36=13/36
则x^2+y^2=13
- 3楼网友:抱不住太阳的深海
- 2021-03-20 19:45
1 (X-1)(1+B)(1-B)
2 (X+2)^3(X-2)
3 (X+1)^4
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