ab=2(a+b)ab=2a+2b(ab-2a)=2ba=2b/(b-2)=(2b-4+4)/(b-2)=2 + 4/(b-2)∵a为整数∴ 4/(b-2)为整数∴b=-2,0,1,3,4,6b=-2时,a=1b=0时,a=0b=1时,a=-2b=3时,a=6b=4时,a=4b=6时,a=3即:-2×1=2×(-2+1)0×0=2×(0+0)3×6=2×(3+6)4×4=2×(4+4)
rganizations' management
这个数是零吧