(x+y)^2(x-y)^2-(x-y)(x+y)(x^2+y^2)分解因式
原式=(x+y)(x-y)[(x+y)(x-y)-(x²+y²)]=(x+y)(x-y)(x²-y²-x²-y²)=-2y²(x+y)(x-y)
计算(x+y)^2(x-y)^2-(x-y)(x+y)(x^2+y^2)
(x+y)^2(x-y)^2-(x-y)(x+y)(x^2+y^2)=(x-y)(x+y){(x+y)(x-y)-(x^2+y^2)} =(x-y)(x+y)(x^2-y^2-x^2-y^2)=-2y^2(x-y)(x+y)
(x+y)^2(x-y)+(x+y)(x-y)^2 分解因式
(x+y)^2(x-y)+(x+y)(x-y)^2 =(x+y)(x-y)[(x+y)+(x-y)]=2x(x+y)(x-y)
(x+y)^2-(x-y)^2因式分解
(x+y)^2-(x-y)^2 =(x+y+x-y)(x+y-x+y)=2x*2y =4xy 利用了平方差公式:a^2-b^2=(a+b)(a-b)泪笑为您解答,请点击[采纳为满意回答];如若您有不满意之处,请指出,我一定改正!希望还您一个正确答复!祝您学业进步!
[(x+y)^2+(x-y)^2]*(x^2-y^2)
解:[(x+y)^2+(x-y)^2] ·(x^2-y^2)=[(x^2 + 2xy +y^2)+ (x^2 - 2xy + y^2)](x^2 - y^2)=[2 x^2 + 2y^2](x^2 - y^2)=2(x^2 + y^2)(x^2 - y^2)=2(x^4 - y^4)=2 x^4 - 2 y^4 【很高兴为你解决以上问题,希望对你的学习有所帮助...
(x+y)^2(x-y)^2
(1)(x+y)^2(x-y)^2=[(x+y)(x-y)]^2=[x^2-y^2]^2=x^4-2x^2y^2+y^4 (2)[x^2+x-5][x^2-x-5]=[(x^2-5)+x][(x^2-5)-x]=[(x^2-5)^2-x^2]=x^4-10x^2+25-x^2=x^4-11x^2+25 {(1)式是用的完全平方公式,(2)是用的平方差公式} ...
分解因式(x+y)^2-(x+y)
答:1)(x+y)^2-(x+y)=(x+y)(x+y-1)2)a(a-b)-a+b =a(a-b)-(a-b)=(a-1)(a-b)
(x+y)^2×(x-y)^2=?
(x^2-y^2)^2 相信我的答案是最简洁最完美的答案了。
(x+y)^2-x-y的因式分解
(x+y)^2-x-y =(x+y)^2-(x+y)=(x+y)(x+y-1)
(x+y)^2(x-y)^2+4(x^2-y^2)-5 因式分解
原式等于(x+y)^2(x-y)^2+4(x+y)(x-y)-5,设x+y为A,x-y为B,所以A^2B^2+4AB-5,所以=(AB+5)*(AB-1)。再把A和B换回去就行了