(x+y)²*(x²-2xy+y²)=( )²

来源:学生作业帮助网 编辑:作业帮 时间:2024/11/20 02:27:09
(x+y)²*(x²-2xy+y²)=( )²
x){BRSMZ ă0u**+!{:m2 @"`TON;Jl}p=-!J-2+OY|ui;NyںX$lzp*EV$$$ف<"i

(x+y)²*(x²-2xy+y²)=( )²
(x+y)²*(x²-2xy+y²)=( )²

(x+y)²*(x²-2xy+y²)=( )²
填:x³+y³
利用立方和公式得
(x+y)²*(x²-2xy+y²)²
=[(x+y)(x²-2xy+y²)]²
=(x³+y³)²