The elements of a mathematical equation refer to: the number of different unknowns in the equation; Times refers to the unknown highest index, and the highest index is several times.

For example, the square of x+the cubic of y +y+z =28 is a ternary cubic equation.

An equation is an equation that must contain an unknown equation. An equation is not necessarily an equation, but it must be an equation.

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The basic idea of solving quadratic equations with one variable is to simplify them into two quadratic equations with one variable. There are four solutions to the quadratic equation of one variable: direct Kaiping method; Matching method; Formula method; Factorization method.

Usually, factorization is the most commonly used method to solve quadratic equations with one variable. When factorization is applied, the equation is written in a general form and the quadratic coefficient is turned into a positive number.