当x大于0时,f(x)=-2x²+3x+1,取x0∴f(-x)=-2(-x)²+3(-x)+1=-2x²-3x+1∵f(x)是奇函数∴f(-x)=-f(x)∴f(x)=-f(-x)=-(-2x²-3x+1)=2x²+3x-1∵定义为R∴f(-0)=-f(0),∴f(0)=0{-2x²+3x+1 (x>...