kvadratna
kvadratna is a Croatian word that translates to "quadratic" in English. It is commonly used in mathematics to describe equations or functions of the second degree. A quadratic equation is a polynomial equation of the form ax^2 + bx + c = 0, where a, b, and c are coefficients and a is not equal to zero. The graph of a quadratic function, y = ax^2 + bx + c, is a parabola. These equations and functions are fundamental in algebra and have numerous applications in various fields, including physics, engineering, and economics, for modeling projectile motion, optimization problems, and analyzing economic trends. The solutions to a quadratic equation are called roots or zeros, and they can be found using methods such as factoring, completing the square, or the quadratic formula. The nature of the roots (real, complex, distinct, or repeated) depends on the discriminant, which is calculated as b^2 - 4ac. The term kvadratna is therefore essential for understanding many mathematical concepts and their real-world implications in Croatian mathematical discourse.