Home | About Mathguru | Advertisements | Teacher Zone | FAQs | Contact Us | Login

 
If you like what you see in Mathguru
Subscribe Today
For 12 Months
US Dollars 12 / Indian Rupees 600
Available in 20 more currencies if you pay with PayPal.
Buy Now
No questions asked full moneyback guarantee within 7 days of purchase, in case of Visa and Mastercard payment
  

Example:Forming a Quadratic

Post to:

Bookmark and Share



Explanation:

In mathematics, a quadratic polynomial or quadratic is a polynomial of degree two, also called second-order polynomial. That means the exponents of the polynomial's variables are no larger than 2. For example, x2 − 4x + 7 is a quadratic polynomial, while x3 − 4x + 7 is not.

 

http://en.wikipedia.org/wiki/Quadratic_polynomial

 

A quadratic function, in mathematics, is a polynomial function of the form

The expression ax2 + bx + c in the definition of a quadratic function is a polynomial of degree 2 or second order, or a 2nd degree polynomial, because the highest exponent of x is 2.

If the quadratic function is set equal to zero, then the result is a quadratic equation. The solutions to the equation are called the roots of the equation.

 

Roots

The roots (zeros) of the quadratic function

are the values of x for which f(x) = 0. (Our solved example in mathguru.com uses this concept).

 

When the coefficients a, b, and c, are real or complex, the roots are

where the discriminant is defined as

 

http://en.wikipedia.org/wiki/Quadratic_function

 

The above explanation is copied from Wikipedia, the free encyclopedia and is remixed as allowed under the Creative Commons Attribution- ShareAlike 3.0 Unported License