(y-x)的三次方(x-y)的m次方(x-y)m 1次方-搜答案-神马作文网

X³+Y³=(X+Y)(X²-XY+Y²)

1、(x+y)乘(x-y)的三次方+(x+y)的三次方乘(y-x)=（x+y)(x-y)((x-y)²-(x+y)²)=（x+y)(x-y)(x-y+x+y)(x-y-x-y)=-

(x-y)^5/[(y-x)^3(y-x)^2]＝(x-y)^5/[-(x-y)^3(x-y)^2]＝(x-y)^5/[-(x-y)^5]＝-1.

(x-y）³×（x-y）²×（y-x）=（x-y）³×（x-y）²×[-(x-y)]=-（x-y）的6次方

(x+y)^3+(z-x)^3-(y+z)^3=[(x+y)^3-(y+z)^3]+(z-x)^3=[(x+y)-(y+z)][(x+y)^2+(x+y)(y+z)+(y+z)^2]+(z-x)^3=

xy的三次方-2x²y²+x的三次方y=xy(y²-2xy+x²)=xy(x-y)²

(x-y)²(y-x)³(x-y)=(x-y)²[-(x-y)³](x-y)=-(x-y)的(2+3+1)次方=-(x-y)的6次方很高兴为您解答,【学习宝典】

负的（x-y）的10次方再问：为什么呢？我要过程麻烦你了再答：后面两个（y-x）可以提负号，二次的提出来是正的，三次的是负的。会了吧~

=（y-x)^3-(y-x)=(y-x)[(y-x)^2-1]=(y-x)(y-x+1)(y-x-1)

解(x-y)(y-x)²(x-y)³=(x-y)(x-y)²(x-y)³=(x-y)^6

解(x+y)³+(x+y)²-(-x-y)=(x+y)³+(x+y)²+(x+y)=(x+y)[(x+y)²+(x+y)+1]=(x+y)(x

=xy(4x²+4xy+y²)=xy(2x+y)²

x+y的三次方*x+y的二次方=(x+y)^3(x+y)^2=(x+y)^(3+2)=(x+y)^5

x的三次方+8y三次方=(x+2y)(x平方-2xy+4y平方）

x/(x+y)(x--)^3=x/(x+y)(x--y)^3y/(y+x)(y--x)^2=y(x--y)/(x+y)(x--y)^3.

x³y-xy³=xy(x²-y²)=xy(x+y)(x-y)

-7x的三次方y的平方-21x的平方y的三次方=-7x²y²(x+3y)再问：求第二题再答：（x-y）的三次方-（y-x）的平方=（x-y）的三次方-（x-y）的平方=(x-y)&

x^3+x-y^3-y=(x^3-y^3)+(x-y)=(x-y)(x^2+xy+y^2)+(x-y)=(x-y)(x^2+xy+y^2+1).x^3-x^2-y^3+y^2=(x^3-y^3)-(x

您好：x的三次方(y-x)的三次方-(x-y)的三次方=x的三次方(y-x)的三次方+(y-x)的三次方=（x³+1）(y-x)³=（x+1）（x²-x+1）(y-x)&

题目是不是(x^3+y^3)/(x+y)?应该等于x^2+xy+y^2