a²+b²-2a+2b+2=0a²-2a+1+b²+2b+1=0(a-1)²+(b+1)²=0a=1、b=-1a²⁰⁰⁴+b²⁰⁰⁵=1²⁰⁰⁴+(-1)²⁰⁰⁵=1-1=0
a²-2a+1+(b²+2b+1)=0(a-1)²+(b+1)²=0a-1=0,b+1=0a=1,b=-1a的2004次方加b的2005次方=1+(-1)=0
