因为(X-4)^2+1/4|X+Y-Z|=0
所以X-4=0,X+Y-Z=0
X=4,Y-Z=-4
5X+3Y-3Z=5X+3(Y-Z)=8
(5X+3Y-3Z)^2013=【(5X+3Y-3Z)^(4*503)】*(5X+3Y-3Z)
=【(5X+3Y-3Z)^4】^503*(5X+3Y-3Z)
因为(5X+3Y-3Z)^4的个位是6,所以【(5X+3Y-3Z)^4】^503的个位是6,6*8的个位是8,
所以结果的末尾数字是8
8吧?