a:

b:

c:

Solutions:

x=     y=
Above are Real Numbers
x=    y=
Above are Imaginary Numbers (occurs when b²- 4ac results in a negative number)

Below is a video tutorial on how to solve quadratic equation problems.

A quadratic equation is a polynomial of the second degree and is generally expressed in the following form:

ax2 + bx + c = 0

where,

x represents an unknown or a variable and a,b & c are constants with a ≠ 0. If a = 0 the equation is linear.

A quadratic equation with real or complex coefficients has two solutions, called roots. These two solutions may or may not be distinct, and they may or may not be real.

The roots are given by the quadratic formula

$x=\frac{-b \pm \sqrt {b^2-4ac}}{2a},$

where the symbol  " ± " indicates that both

$x=\frac{-b + \sqrt {b^2-4ac}}{2a}\quad\text{and}\quad x=\frac{-b - \sqrt {b^2-4ac}}{2a}$

are solutions of the quadratic equation.

Wiki 10/10/11

### bizSinny.com - Our Calculator Micro Site

bizSkinny.com provides easy to use quick reference online calculators that solve basic or scientific problems for school, business or personal use. I have been working on this site for a long time now, and while there are still a lot of calculators that I haven't created yet we offer quite a few. So far we cover the following areas of math; algebra, geometry, finance, health, statistics, math, loans, and more. Our calculators are online for free! If you have a suggestion, please contact us.