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:

x2=27 x227=0 x1,2=±27=±5.196152423 x1=5.196152423 x2=5.196152423 

Solution in text:

x2-27=0 ... b=0; pure quadratic equation

Discriminant:
D = b2 - 4ac = 108
D > 0 ... The equation has two distinct real roots

x1 = 5.1961524
x2 = -5.1961524

P = {5.1961524; -5.1961524}