prescribing of plus or minus
...正负开方术；方程的可解性；根与系数的关系；符号化 [gap=628]Keywords:Algebraic equations; Solving equations; Prescribing of plus or minus; Solvability of the equation; The relationship between the coefficient and the ..
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prescribing of plus or minus
正负的规定
以上为机器翻译结果，长、整句建议使用 人工翻译 。