作业帮（x-y/x+2y)的3次方
来源：学生作业帮助网 编辑：作业帮 时间：2024/07/07 16:49:41
x){BRBۨRgk>&H ~
^}@M}
\l1X,g BiXh4H ,HרR2Uy P.
(k TQ]֭\# 8cm HD X c 6m54k״/.H̳
ZP?ٻi%fϦnxv){OwlZdǪk= D5B'
（x-y/x+2y)的3次方
（x-y/x+2y)的3次方
（x-y/x+2y)的3次方
[(x-y)/(x+2y)]^3
=(x-y)^3/(x+2y)^3
=[(x-y)^2*(x-y)]/[(x+2y)^2*(x+2y)]
=[(x^2-2xy+y^2)^2*(x-y)]/[(x^2+4xy+4y^2)^2*(x+2y)]
=(x^3-x^2y+xy^2-y^3-2x^2y+2xy^2)/(x^3+2x^2y+4xy^2+8y^3+4x^2y+8xy^2)
=(x^3-3x^2y+3xy^2-y^3)/(x^3+6x^2y+12xy^2+8y^3)
（x-y/x+2y)^3
使用shift+6数字键可以打出那个符号。
[(x-y)/(x+2y)]^3
=(x-y)^3/(x+2y)^3
(x-y)3次方.(x-y)2次方.(y-x)
(y-2x)×(2x-2y)的3次方×(y-2x)的4次方
(x+3y)(x-3y)(x的2次方-9y的2次方）
(x-y)的3次方乘(x-y)的2次方乘(y-x)
(x-y)的2次方×(y-x)的3次方×（x-y）=
化简：{2/3x-2/(x+y)[(x+y)/3x-x-y]}/【(x-y)/x】的负二次方
(x-y)的2次方+3(y-x)因式分解
（x-y/x+2y)的3次方
(y-x)²(x-y)+(x-y)的三次方+2(x-y)²(y-x)
(x-y)的4次方/(y-x)的3次方+(x-y)0的次方*(y-x)+(-x-y)7次方/(x+y)6次方=
(x-y)的5次方-(y-x)的2次方,
因式分解x次方-y次方+5x-y+6【x-y+2】【x+y+3】
y(x-y)的2次方-(y-x)的3次方
{(z+y)(x-y)-(x-y)的2次方+2y(x-y)}除以4y
6xy的2次方-9x的2次方y-y的3次方+y
x的2次方y乘xy+(-2x)的3次方y的2次方
x-y+x+y分之2y的2次方
X的三次方Y-3X的二次方Y的二次方+2XY