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构建一元二次方程的模型解决数学问题,是一种非常有效的手段,其独特功能在于充分运用构建的一元二次方程及根判别式和求根公式变更命题,从而使问题获得圆满解决.
Constructing a quadratic equation model to solve mathematical problems is a very effective means. Its unique function is to make full use of the constructed one-dimensional quadratic equation and the root discriminant formula and the root formula change proposition, so that the problem can be solved satisfactorily.