Quadratic equation calculator
Quadratic equation has the basic form: 
ax2+bx+c=0Enter 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: 
h2-4h+20=0 ... quadratic equation
Discriminant: 
D = b
2 - 4ac = -64
D < 0 ... 
The equation has two distinct complex rootsh
1 = 
2+4ih
2 = 
2-4iP = {2+4i; 2-4i}