若方程x²+(m²-1)x+m=0的两根互为相反数,则m的值为
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若方程x²+(m²-1)x+m=0的两根互为相反数,则m的值为
若方程x²+(m²-1)x+m=0的两根互为相反数,则m的值为
若方程x²+(m²-1)x+m=0的两根互为相反数,则m的值为
韦达定理:-b/a=1-m²=0,c/a不等0,m=1或-1