This mathematical term represents the basic unit of operation consisting of numbers, unknowns and operational symbols.
The "degree" in mathematics is the power of the unknown quantity in the equation (such as x? Just call it the second time).
The quadratic equation of one variable can be transformed into the general form ax? +bx+c=0(a≠0), where ax It is called quadratic term and a is the coefficient of quadratic term; Bx is called a linear term, and b is the coefficient of the linear term; C is called a constant term.
Extended data:
The establishment of a quadratic equation with one variable must meet three conditions at the same time:
1 is an integral equation, that is, both sides of the equal sign are algebraic expressions, if there is a denominator in the equation; And the unknown is on the denominator, then this equation is a fractional equation, not a quadratic equation. If there is a root sign in the equation and the unknown is within the root sign, then the equation is not a quadratic equation (it is an irrational number equation).
2. It contains only one unknown number;
The maximum number of unknowns is 2.