(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)
(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)=2y(x+y)(x-y)
[(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)+(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
(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} ...
(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)的平方-(x-y)的平方是多少?
(x+y)^2-(x-y)^2 =x^2+2xy+y^2-(x^2-2xy+y^2)=4xy
计算(x+y)^2-(x-y)^2
您好:(x+y)^2-(x-y)^2 =(x+y+x-y)(x+y-x+y)=2x*2y =4xy 如果本题有什么不明白可以追问,如果满意记得采纳 如有其它问题,采纳本题后另发向我求助,答题不易,请谅解,谢谢。祝学习进步!
(x+y)^2·(x-y)^2等于多少?
仅凭楼主给出的条件,无法确切求解。要想具体回答“(x+y)²等于几”,就要看楼主准备让x、y等于几了。
平方差公式计算(x+y)^2-(x-y)^2
(x+y)就是a,(x-y)就是b,(x+y)-(x-y)中间 的减号就是a-b,类比理解就可以,还可以直接求出来就是4xy