用公式法解下列方程 :(1)2X² - 4x -1=0 (2)5x+2=3x² (3) (x-2)(3x-5)=1用公式法解下列方程 (1)2X² - 4x -1=0 (2)5x+2=3x² (3)(x-2)(3x-5)=1
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