Math Problem Statement
方程x^3+(2-a)x^2+bx-a=0(a>0)有三个实根,至少有一个实根在区间(0,a)内,请借助韦达定理求2a-b最大值.
Solution
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Math Problem Analysis
Mathematical Concepts
Cubic Equations
Vieta's Formulas
Formulas
Vieta's formulas for cubic equations
Theorems
Vieta's theorem
Suitable Grade Level
High School
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