x-3/x十3的值为正整数,
(x-3)(x+3)>0
x>3或x<-3
x-3/x十3
=(x+3-6)/(x十3)
=1-6/(x+3)
x+3=1,2,3,6,-1,-2,-3,-6
x=-2,-1,0,3,-4,-5,-6,-9
所以
x=-4,-5,-6,-9