A new method of completing the square with reverse order is presented by change quadric form into standard form.
提出了一种新的将二次型化为标准型的配方法——逆序配方法。
The extremal formula of binary quadratic functions is studied by using method of undetermined coefficients, substitution method and method of completing the square.
用特定系数法、换元法、配方法探求二元二次函数的极值公式。
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