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:

a2-15a-990=0 ... quadratic equation

Discriminant:
D = b2 - 4ac = 4185
D > 0 ... The equation has two distinct real roots

a1 = 39.845788
a2 = -24.845788

P = {39.845788; -24.845788}