Calculate the Discriminant: write a function called discriminant that takes as parameters three floats a$,$ b$,$ and c$,$ and returns the value of b$^2-4$ac

Check for the existance of real roots: write a function called has$\_$real$\_$root that takes three float a$,$b and c as parameters, and returns True if the discriminant is larger than or equal to $0$ and False otherwise. Calculate the roots of a quadratic equation: Write a function called get$\_$real$\_$roots

$1.$ Take three floats a$,$b$,$and c as perameters and retun the two roots as a tuple

$($two roots x$1=-$b$-$d$/2$a and x$2=-$b$+$d$/2$a$)$

$($python language$)$