Quadratic equation calculator

Quadratic equation has the basic form:
ax2+bx+c=0

eq2
Enter the coefficients a, b, c of quadratic equation in 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:

0.4375a2-28=0 ... b=0; pure quadratic equation

Discriminant:
D = b2 - 4ac = 49
D>0 ... The equation has two distinct real roots

a1 = 8
a2 = -8

P = {8; -8}