2x²+5=7x 4x(x-1)+3=0 4(y²+0.09)=2.4y 求用公式法解一元二次方程如题
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![2x²+5=7x 4x(x-1)+3=0 4(y²+0.09)=2.4y 求用公式法解一元二次方程如题](/uploads/image/z/3699461-29-1.jpg?t=2x%26%23178%3B%2B5%3D7x+4x%EF%BC%88x-1%EF%BC%89%2B3%3D0+4%EF%BC%88y%26%23178%3B%2B0.09%EF%BC%89%3D2.4y+%E6%B1%82%E7%94%A8%E5%85%AC%E5%BC%8F%E6%B3%95%E8%A7%A3%E4%B8%80%E5%85%83%E4%BA%8C%E6%AC%A1%E6%96%B9%E7%A8%8B%E5%A6%82%E9%A2%98)
2x²+5=7x 4x(x-1)+3=0 4(y²+0.09)=2.4y 求用公式法解一元二次方程如题
2x²+5=7x 4x(x-1)+3=0 4(y²+0.09)=2.4y 求用公式法解一元二次方程
如题
2x²+5=7x 4x(x-1)+3=0 4(y²+0.09)=2.4y 求用公式法解一元二次方程如题