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:

1.56b2-76.96=0 ... b=0; pure quadratic equation

Discriminant:
D = b2 - 4ac = 480.2304
D > 0 ... The equation has two distinct real roots

b1 = 7.0237692
b2 = -7.0237692

P = {7.0237692; -7.0237692}