## Quadratic Equations in One Variable

**Quadratic Equation**

Quadratic equation is in the form

$ax^2 + bx + c = 0$

Where

*a*, *b*, & *c* = real-number constants

*a* & *b* = numerical coefficient or simply coefficients

*a* = coefficient of *x*^{2}

*b* = coefficient of *x*

*c* = constant term or simply constant

*a* cannot be equal to zero while either *b* or *c* can be zero