Roots of quadratic equation in python

Here in this post we will write a code to find out roots of the quadratic equations . So first we have to know the formula which we are going to use in this program . For finding the roots of a quadratic equation we use the formula:-

x=−b±b2−4ac−−−−−−−√2a

is used to solve quadratic equation where a ≠ 0 .

When b2−4ac=0 there is one real root.

 When b2−4ac>0 there are two real roots.

 When b2−4ac<0${\mathrm{<br>}}^{}$ there are two complex roots.

Code:-

import cmath

a=1

b=5

c=6

dis = (b**2) - (4 * a*c)

ans1 = (-b-cmath.sqrt(dis))/(2 * a)

ans2 = (-b + cmath.sqrt(dis))/(2 * a)

print("The roots are")

print(ans1,ans2)

Output:-

The roots are

(-3+0j) (-2+0j)

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