2.(x+y)²(x-y)²-(x-y)(x+y）(x²+y²)=-(x-y)²(x-y)²-(x-y)(x+y)(x²+y²)①=-(x-y)^4-[(x²-y²)(x²+y²)]②=-（x-y)^4-[x^4-y^4]③如果对,怎么继续做,如果错了,哪里错了,第几步,请改
来源：学生作业帮助网 编辑：作业帮 时间：2024/09/13 12:16:47
xXkOP+M,nɖ2,f* E
T l5NnN}hif{ʥ,#ƞ}{;
-/ sL<1XښL F3qz
y(S+ҹ.t 1ؼv?.|^Pxt_Af{9rVvf)G-nK7 Jp>4/q zzk>1FCc
Hpc?4aD%
ql0\'^^8EJM\nr i G
^p`!sBo_Z-L%wC2[}⟘N1^U
DY3Gw q.܈=W
5vM VaWvTJ 'r,WLre`f^]YS̱-='U 01 a8* Tpnn J G !K'"*+([y dRx۱0^Xqv#.(B>¡M"ҬC@A2#@y*郰jJ:p 8oQ.:Yهҧdɒ-f#dTiOb, մ!AaBGg@8Z@ E 8!w8B &6}\C3tːJVQ 8 ~QU*T r?Cđr/7^ Mv