Use the Discriminant to Find the Number of Roots

the quadration formula:
let a,b,and c be real numbers where a is not equal to 0 . the solutins of the quadratic equation
a x ^2+ b x+c =0




in the quadration formula the expression b^2-4ac is called the dicriminant of the associated equation
a x^2+b x+c=0



2 real

x^2-5x=4
x^2-5x-4=0




x=5.70 or x=-0.70