The different positions of FH are determined, by the roots of a biquadratic equation.    From Wordnik.com.  [Outlines of Natural Philosophy: Being Heads of Lectures Delivered in the University of Edinburgh] Reference

The solution of cubic and of biquadratic equations, at first only in certain particular forms, but later in all forms, was mastered by.    From Wordnik.com.  [The Age of the Reformation] Reference

After the fame manner you may find like Theorems for the roots of biquadratic equa - tions, or of equations of any dimcnfion whatever.    From Wordnik.com.  [A Treatise of Algebra: In Three Parts ; Containing] Reference

Or if you want to find the roots of the biquadratic without taking away the fccond term 1 fuppofe it to be of this fornix and the values of x will be.    From Wordnik.com.  [A Treatise of Algebra: In Three Parts ; Containing] Reference

He however extended and developed it, and after his pupil Ferrari had discovered the solution of the biquadratic equation by means of the cubic, he felt justified in publishing it.    From Wordnik.com.  [The Catholic Encyclopedia, Volume 3: Brownson-Clairvaux] Reference

Modern, Sixteenth-Century attention to this ancient matter, as by Cardano and his followers, introduced the modern issues of cubic and biquadratic algebraic functions in an attempted algebraic form.    From Wordnik.com.  [LaRouche's Latest] Reference

Video production editing, unstudious the payback overpoweringly, biquadratic, the deep rosmarinus, garner, interviewer, i hurricane profoundly artificially journalese your sustentation, i domestic britten all your buy gonadotropic skateboarder operator.    From Wordnik.com.  [Rational Review] Reference

However, the Eighteenth-Century defenders of the incompetence of both Descartes and Newton, such as de Moivre, D'Alembert, Euler, and Lagrange, claimed to have proven their case against Leibniz, by simply accepting de Moivre's proposal that they agree to denounce what they termed, fraudulently, as "imaginary" roots of the relevant cubic and biquadratic functions.    From Wordnik.com.  [LaRouche's Latest] Reference

'Thus any cubic equation may be conceived as generated by the multiplication of/i&r« fimple equations, or of one quadratic and one fimple equafion« A biquadratic as generated by the ilitikiplication of four Jimple equations, or of two quadratic equations \ or ladly) of one cubic and one Jimpk equation ..' '.    From Wordnik.com.  [A Treatise of Algebra: In Three Parts ; Containing] Reference