Quadratic equations are polynomials, meaning strings of math terms. An expression like “x + 4” is a polynomial. They can have one or many variables in any combination, and the magnitude of them is ...

Veli Kurt ᵃ, Burak Kurt ᵇ, Some Identities and Recurrence Relations on the Two Variables Bernoulli, Euler and Genocchi Polynomials, Filomat, Vol. 30, No. 7, The 22nd International Conference on Finite ...

Alan Durfee, Nathan Kronefeld, Heidi Munson, Jeff Roy, Ina Westby, Counting Critical Points of Real Polynomials in Two Variables, The American Mathematical Monthly ...