原方程去分母得,a(x+2)+b(x-2)+c(x²-4) = 5x-2整理得,cx²+(a+b)x+2a-2b-4c = 5x-2∴ c=0,a+b=5, 2a-2b-4c = -2解由上面3个方程组成的方程组得,a=1.5, b=3.5, c=0...