解下列方程:(1)3x²+6x=0(用公式法) (2)(x-2)²=2x-4(3)2x²-5x-3=0 (4)x²-15x=100
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![解下列方程:(1)3x²+6x=0(用公式法) (2)(x-2)²=2x-4(3)2x²-5x-3=0 (4)x²-15x=100](/uploads/image/z/226832-32-2.jpg?t=%E8%A7%A3%E4%B8%8B%E5%88%97%E6%96%B9%E7%A8%8B%EF%BC%9A%EF%BC%881%EF%BC%893x%26%23178%3B%2B6x%3D0%EF%BC%88%E7%94%A8%E5%85%AC%E5%BC%8F%E6%B3%95%EF%BC%89+%EF%BC%882%EF%BC%89%EF%BC%88x-2%29%26%23178%3B%3D2x-4%283%292x%26%23178%3B-5x-3%3D0+%EF%BC%884%EF%BC%89x%26%23178%3B-15x%3D100)
解下列方程:(1)3x²+6x=0(用公式法) (2)(x-2)²=2x-4(3)2x²-5x-3=0 (4)x²-15x=100
解下列方程:(1)3x²+6x=0(用公式法) (2)(x-2)²=2x-4
(3)2x²-5x-3=0 (4)x²-15x=100
解下列方程:(1)3x²+6x=0(用公式法) (2)(x-2)²=2x-4(3)2x²-5x-3=0 (4)x²-15x=100