What is another word for biquadratic equation?
Pronunciation: [ba͡ɪkwədɹˈatɪk ɪkwˈe͡ɪʒən] (IPA) 
A biquadratic equation, also known as a quartic equation, is an algebraic expression that consists of a fourth-degree polynomial. Biquadratic equations typically involve finding the roots or solutions of the equation, which may or may not be real or complex numbers. Some synonyms for the term biquadratic equation include quartic equation, fourth-degree equation, and fourth-order polynomial equation. Other close synonyms of this term include equations with degree four and equations that involve four variables. Regardless of the terminology used, solving biquadratic equations requires a strong understanding of advanced algebraic concepts and a thorough knowledge of mathematical principles.
