Quadratic equation calculator

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


x2+(6/7(x+1))2+6x10(6/7(x+1))+9=0 1.734693877551x2+16.041x+18.306=0  a=1.734694;b=16.041;c=18.306 D=b24ac=16.041241.73469418.306=130.2857142857 D>0  x1,2=2ab±D=3.46938816.04±130.29 x1,2=4.623529±3.289997 x1=1.333531989 x2=7.913526835   Factored form of the equation:  1.734693877551(x+1.333531989)(x+7.913526835)=0 

Solution in text:

1.734693877551x2+16.040816326531x+18.30612244898=0 ... quadratic equation

D = b2 - 4ac = 130.2857142857
D > 0 ... The equation has two distinct real roots

x1 = -1.333532
x2 = -7.9135268

P = {-1.333532; -7.9135268}