Quadratic Equation Calculator

A quadratic equation has the basic form:

a x^{2} + b x + c = 0

Enter the coefficients a, b, and c of the quadratic equation in its basic standardized form. The solution of a quadratic equation usually consists of two distinct real or complex roots, or one double root — calculated using the discriminant.

Calculation:

Solution in text:

r²-2.1666666666667r+1=0 ... quadratic equation

Discriminant:
D = b² - 4ac = 0.6944444444
D > 0 ... The equation has two distinct real roots

r₁ = 1.5
r₂ = 0.6666667

P = {1.5; 0.6666667}