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初中数学：一元二次方程两根都是整数，怎么求x²+2x+k²=0的根？
九年级数学：一元二次方程两根都是整数，怎么求x²+2x+k²=0的根？
初中数学，解一元二次方程，根的判别式，韦达定理，中考培优真题110/168
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