在高中代数学里，你学习了标准二次方程序。
In high-school algebra, you learned that the standard quadratic equation.
以后代数中的种种推论都很枯燥，包括二次方程序，我这辈子从未用过它。
Everything in algebra was boring extrapolation after that, including the quadratic equation, which I have never used in my life.
以后代数中的种种推论都很枯燥，包括二次方程序，我这辈子从未用过它。
Everything in algebra was boring extrapolation after that, including the quadratic equation, which I have never used in my life.
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