Quadratic equation calculator

Quadratic equation has the basic form: ax2+bx+c=0
eq2
Enter the quadratic equation's coefficients a, b, and c of its basic standardized form. A solution of quadratic equations is usually two different real or complex roots or one double root — the calculation using the discriminant.


Calculation:


Solution in text:

-x2-2x+0.29289321881345=0 ... quadratic equation

Discriminant:
D = b2 - 4ac = 5.1715728753
D > 0 ... The equation has two distinct real roots

x1 = 0.1370546
x2 = -2.1370546

P = {0.1370546; -2.1370546}