- 二次多项式 èrcìduōxiàngshì quadratic polynomiala polynomial of the second degree
- 多项式方程 duōxiàngshìfāngchéng polynomial equation(math) an algebraic equation where one or both sides are polynomials
- 多项式方程组 duōxiàngshìfāngchéngzǔ system of polynomial equations(math) a set of two or more polynomial equations involving one or more variables
