一道因式分解的难题因式分解(1+y)^2-2x^2(1+y^2)+x^4(1-y)^2
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解决时间 2021-02-01 05:33
- 提问者网友:niaiwoma
- 2021-02-01 00:14
一道因式分解的难题因式分解(1+y)^2-2x^2(1+y^2)+x^4(1-y)^2
最佳答案
- 五星知识达人网友:躲不过心动
- 2021-02-01 01:39
(1+y)^2-2x^2(1+y^2)+x^4(1-y)^2 =(1+y)^2+2(1+y)x^2(1+y)+x^4(1-y)^2-2(1+y)x^2(1-y)-2x^2(1+y^2) =[(1+y)+x^2(1-y)]^2-2(1+y)x^2(1-y)-2x^2(1+y^2) =[(1+y)+x^2(1-y)]^2-(2x)^2 =[(1+y)+x^2(1-y)+2x]·[(1+y)+x^2(1-y)-2x] =(x^2-x^2y+2x+y+1)(x^2-x^2y-2x+y+1) =[(x+1)^2-y(x^2-1)][(x-1)^2-y(x^2-1)] =(x+1)(x+1-xy+y)(x-1)(x-1-xy-y)======以下答案可供参考======供参考答案1:((1+y)-x∧2(1-y))∧2-4x∧2y∧2=((1+y)-x∧2(1-y)-2xy)((1+y)-x∧2(1-y)+2xy)貌似是这样的,接下来就自己整理一下供参考答案2:因为(1-Y)^2*(-1)+1*[-(1+Y)^2=-2(1+Y)^2 所以(1+y)^2-2x^2(1+y^2)+x^4(1-y)^2 =[(1-Y)^2X^2-(1+Y)^2](x^2-1) =[(1-Y)X+(1+Y)][(1-Y)X-(1+Y)](X+1)(X-1) =(X+1-XY+Y)(X-1-XY-Y)(x+1)(X-1)
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- 1楼网友:青灯有味
- 2021-02-01 02:15
和我的回答一样,看来我也对了
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