绝对值+不等式已知a∈R,若关于x的方程x^2+x+(a-1/4)+(a)=0有实数根,则a的取值范围是?注意:( )代表绝对值,正解【0,1/4】.请写出详解过程.
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![绝对值+不等式已知a∈R,若关于x的方程x^2+x+(a-1/4)+(a)=0有实数根,则a的取值范围是?注意:( )代表绝对值,正解【0,1/4】.请写出详解过程.](/uploads/image/z/13789407-39-7.jpg?t=%E7%BB%9D%E5%AF%B9%E5%80%BC%2B%E4%B8%8D%E7%AD%89%E5%BC%8F%E5%B7%B2%E7%9F%A5a%E2%88%88R%2C%E8%8B%A5%E5%85%B3%E4%BA%8Ex%E7%9A%84%E6%96%B9%E7%A8%8Bx%5E2%2Bx%2B%28a-1%2F4%29%2B%28a%29%3D0%E6%9C%89%E5%AE%9E%E6%95%B0%E6%A0%B9%2C%E5%88%99a%E7%9A%84%E5%8F%96%E5%80%BC%E8%8C%83%E5%9B%B4%E6%98%AF%3F%E6%B3%A8%E6%84%8F%EF%BC%9A%EF%BC%88+%EF%BC%89%E4%BB%A3%E8%A1%A8%E7%BB%9D%E5%AF%B9%E5%80%BC%2C%E6%AD%A3%E8%A7%A3%E3%80%900%2C1%2F4%E3%80%91.%E8%AF%B7%E5%86%99%E5%87%BA%E8%AF%A6%E8%A7%A3%E8%BF%87%E7%A8%8B.)
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