因式分解:(x+y)^2(x-y)-(x+y)(x^2+y^2)

如题所述

第1个回答  2014-11-06

追问

你写错了 答案是-2y^2(x+y)

追答

不好意思没有注意到中间是减

因式分解:(x+y)^2(x-y)-(x+y)(x^2+y^2)
因式分解:(x+y)^2(x-y)-(x+y)(x^2+y^2)  我来答 1个回答 #话题# “你不知道的”中国航天日 占思硙On 2014-11-06 · TA获得超过1416个赞 知道小有建树答主 回答量:1520 采纳率:0% 帮助的人:762万 我也去答题访问个人页 展开全部 追问 你写错了 答案是-2y^2(x+y) 追...

因式分解:(x+y)^2(x-y)-(x+y)(x-y)^2
答:先提前公因式(x+y)(x-y)(x+y)^2(x-y)-(x+y)(x-y)^2 =(x+y)(x-y)[x+y-(x-y)]=(x-y)(x+y)(x+y-x+y)=2y(x-y)(x+y)

因式分解(x+y)2(x-y)2-(x-y)(x+y)(x2+y2)
(x+y)2(x-y)2-(x-y)(x+y)(x2+y2)=(x-y)(x+y)[(x-y)(x+y)-(x2+y2)]=(x-y)(x+y)[(x2-y2)-(x2+y2)]= -2(x-y)(x+y)y2

(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)+(x+y)(x-y)^2
解:(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) 的平方(x-y)+(x+y)(x-y)的平方 因式分解
解:(x +y) 的平方(x-y)+(x+y)(x-y)的平方 =(x+y)(x-y)(x+y+x-y)=2x(x+y)(x-y)

(x+y)∧2-(x-y)∧2 利用因式分解计算
(x+y)∧2-(x-y)∧2 =(x+y+x-y)(x+y-x+y)=2x*2y =4xy

2(x+y)(x-y)-(x+y)^2(x-y)^2
解:因式分解:2(x+y)(x-y)-(x+y)^2(x-y)^2 =(x+y)(x-y)[2-(x+y)(x-y)]=(x+y)(x-y)(2-x²+y²)求值:2(x+y)(x-y)-(x+y)^2(x-y)^2 =2x²-2y²-(x²-y²)²=2x²-2y²-x^4+2x²y²-...

2(x-y)(x+y)-(x+y)^2因式分解
解:原式=3x^2-x^2+2xy =(x-3y)(x+y)方法:十字相乘

数学因式分解提问!(要过程)
第一种:用平方差公式 , 原式=(x+y)^2-(4(x-y))^2 =(x+y-4(x-y))(x+y+4(x-y))=(5y-3x)(5x-3y)第二种:全展开合并同类项,原式=x^2+y^2+2xy-16(x^2+y^2-2xy)=-15x^2-15y^2+34xy =(5y-3x)(5x-3y) 这一步比较十字相乘分解比较麻烦,需要不断凑数,完全平方...

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