2000(20002000)=x2000(2000^{2000}) = x2000(20002000)=x Find x.
200020012000^{2001}20002001
400020004000^{2000}40002000
200040002000^{4000}20004000
4,000,00020004,000,000^{2000}4,000,0002000
20004,000,0002000^{4,000,000}20004,000,000