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:

x2+(6/7(x+1))2+6x10(6/7(x+1))+9=0 1.734693877551x2+16.041x+18.306=0  a=1.734693877551;b=16.041;c=18.306 D=b24ac=16.041241.73469387755118.306=130.2857142857 D>0  x1,2=b±D2a=16.04±130.293.469387755102 x1,2=4.62352941±3.2899974232486 x1=1.3335319885161 x2=7.9135268350134   Factored form of the equation:  1.734693877551(x+1.3335319885161)(x+7.9135268350134)=0 

Solution in text:

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

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

x1 = -1.3335319885161
x2 = -7.9135268350134

P = {-1.3335319885161; -7.9135268350134}