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要解二次方程 －3x 的平方加上

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10x 减去 3 等于 0。

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这个方程已经是标准式了。

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有很多解法。

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如果采用二次方程求解的公式一定可以解出来。

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我把方程抄下来。

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方程为－3x 的平方加上 10x 减去 3 等于 0。

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我打算用二次方程的公式

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来解两次，以说明只要我们

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正确地使用公式，

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就一定能得到该

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方程的正确且

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一致的解答。

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