Formula method

Formula method is a method to solve a quadratic equation with one variable, and it also refers to the application of a formula to calculate something. In addition, there are other methods to solve equations, such as collocation method, cross multiplication, direct Kaiping method, factorization method and so on. The formula expresses the result of solving the general quadratic equation with one variable by matching method.

According to the relationship between factorization and algebraic expression multiplication, all the coefficients can be directly brought into the formula to find the root, thus avoiding the formula process and finding the root directly. This method of solving a quadratic equation with one variable is called formula method.

Knowledge expansion:

Mathematics [English: Mathematics, from ancient Greece μ? θξμα(máthēma)； Often abbreviated as math or maths], it is a discipline that studies concepts such as quantity, structure, change, space and information.

Mathematics is a universal means for human beings to strictly describe and deduce the abstract structure and mode of things, and can be applied to any problem in the real world. All mathematical objects are artificially defined in essence. In this sense, mathematics belongs to formal science, not natural science. Different mathematicians and philosophers have a series of views on the exact scope and definition of mathematics.

Mathematics plays an irreplaceable role in the development of human history and social life, and it is also an indispensable basic tool for studying and studying modern science and technology.

Mathematics originated from the early production activities of human beings, and the ancient Babylonians had accumulated some mathematical knowledge, which could be applied to practical problems. As far as mathematics itself is concerned, their mathematical knowledge is only obtained through observation and experience, and there is no comprehensive conclusion and proof, but their contribution to mathematics should also be fully affirmed.

Mathematics is applied in many different fields, including science, engineering, medicine and economics. The application of mathematics in these fields is generally called applied mathematics, which sometimes arouses new mathematical discoveries and promotes the development of new mathematical disciplines. Mathematicians also study pure mathematics, that is, mathematics itself, without any practical application.