(x-3)零次幂+2(x+2)的-2次幂

问题描述:

(x-3)零次幂+2(x+2)的-2次幂
(x-3)零次幂+2(x+2)的-2次幂,有意义则x的范围

(x-3)零次幂+2(x+2)的-2次幂
=1+2/(x+2)^2我题没写完x≠3,x≠-2