早教吧作业答案频道 -->数学-->
(x+y)^2-4(x+y)(x-y)+32(x-y)^2因式分解
题目详情
▼优质解答
答案和解析
无解!
应该是(x+y)^2-4(x+y)(x-y)-32(x-y)^2
(x+y)^2-4(x+y)(x-y)-32(x-y)^2
=[(x+y)+4(x-y)] [(x+y)-8(x-y)]
=(5x-3y) (9y-7x)
应该是(x+y)^2-4(x+y)(x-y)-32(x-y)^2
(x+y)^2-4(x+y)(x-y)-32(x-y)^2
=[(x+y)+4(x-y)] [(x+y)-8(x-y)]
=(5x-3y) (9y-7x)
看了(x+y)^2-4(x+y)(...的网友还看了以下：
A,B,各多少角度?用常数m,n,x,y,z来表示,注意根号里面为x*x+y*y的和.忘记了计算公 2020-05-13 …
协方差cov(X+20,Y+10)=cov(X,知道了COV(X+a,Y+b)=E[(X+a)(Y 2020-06-17 …
关于场论中散度旋度的一题向量r=xi+yj+zk且r的模R=根号下（x*x+y*y+z*z）求R的 2020-07-07 …
求函数的驻点f'x(x,y)=2xy(4-x-y)-x^2y=0.(1)其中f'x(x,y)中左边 2020-07-11 …
把下列各式化成(x-y)的n次方(x-y)³×(y-x)²×(x-y)(x-y)×(x-y)的4次 2020-07-18 …
doublex=0;doubley=0;doublexd=-0.3146;doubleyd=0.2 2020-07-23 …
若正数x,y满足log3（x+y）=1,求log1/3（1/X+9/y）的最大值.这道题为什么若正 2020-07-30 …
1.x+y+z≠0且x/(y+z)=y/(x+y)=z/x+y,求x/(x+y+z)2.x+y+z= 2020-10-31 …
已知(y+z-x)/(x+y+z)=(z+x-y)/(y+z-x)=(x+y-z)/(z+x-y)= 2020-11-01 …
d/dx×（y/x)与f'(y/x)有什么区别呢?这个问题想了好久也搞不懂,做题的时候看答案：d/d 2020-11-04 …