当x为-2时,分式(x²-4)/(x-2)的值为0；当x为-5时,式子(︱x︱-5)/(x²-4x-5)的值为0.分析：(1)因为分母不能为0,所以要使(x²-4)/(x-2)=0,只能是分子为0且分母不为0.(x²-4)/(x-2)=0 ==》(x+2)(x-2)/(...