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Example of Quadratic Equation

Term used for algebraic equation where the one or more variable functions is squared.

Examples of Quadratic Equation:

http://www.wtamu.edu/academic/anns/mps/math/mathlab/col_algebra/col_alg_tut17_quad.htm
http://jwilson.coe.uga.edu/EMT668/EMAT6680.Folders/Barron/unit/Lesson%206/6.html
http://en.wikipedia.org/wiki/Quadratic_equation
http://www.chem.tamu.edu/class/fyp/mathrev/mr-quadr.html

Image Example of Quadratic Equation:

Plots of real-valued quadratic function ax2 + bx + c, varying each coefficient separately.

For the quadratic function:
f (x) = x2 - x - 2 = (x + 1)(x - 2) of a real variable x, the x-coordinates of the points where the graph intersects the x-axis, x = -1 and x = 2, are the roots of the quadratic equation: x2 - x - 2 = 0.