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`x = (- "b" +- sqrt( "b" ^2 -4* "a" * "c" ))/(2* "a" )`

Enter a value for all fields

The **Quadratic Equation **calculator returns the real value roots of a second degree polynomial.

**INSTRUCTIONS**: Enter the following:

- (a) This is the coefficient of second order value
- (b) This is the coefficient of the first order value
- (c) This is the constant

**Quadratic Roots (x):** The calculator returns the real value roots. These are the values of x where the graph of the equation crosses the x axis where y is equal to zero.

The **Quadratic Equation** computes the two solutions of a second order polynomial of the form:

aX²+bX+C = 0

Note, the algorithm in this equation precludes imaginary root (those including the square root of negative numbers). For a derivation of the quadratic formula, see the video: https://www.youtube.com/watch?v=Sidv3d1SEXs&feature=youtu.be