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Quadratic Equations

In mathematics, a quadratic equation is a polynomial equation of the second degree. The general form is

ax^2+bx+c=0

where x represents a variable, and a, b, and c, constants, with a ≠ 0. (If a = 0, the equation becomes a linear equation.)

The constants a, b, and c, are called respectively, the quadratic coefficient, the linear coefficient and the constant term or free term. The term "quadratic" comes from quadratus, which is the Latin word for "square." Quadratic equations can be solved by factoring, completing the square, graphing, Newton's method, and using the quadratic formula (given below). One common use of quadratic equations is computing trajectories in projectile motion.

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Mary J. Blige

MARY J. BLIGE is one of those phenomenal artists that just gets up on stage and makes it look easy - every time - delivering over and over again! I love how she really tells the story of her songs with her performance and sings like she means it - with unparalleled passion. I've just heard recently heard her latest track I AM from the PRECIOUS soundtrack (amazing movie that I just saw today) and I'm really feeling it! Mary's next release STRONGER WITH EACH TEAR is another album that I'm looking forward to!


Hear is Mary J. Blige Performing on the American Music Awards 2009 http://www.youtube.com/watch?v=qpD4ox7j7M4