Question 401604
Find the roots of the equation by quadratic formula

a=  2 , b = -5  , c = -3    .

b^2-4ac= 49

{{{x=(-b+-sqrt(b^2-4ac))/(2a)}}}


{{{x1=(-b+sqrt(b^2-4ac))/(2a)}}}


{{{x1=(-(-5)+sqrt(49))/(2*2)}}}
..
x1=3

{{{x2=(-b-sqrt(b^2-4ac))/(2a)}}}
...
{{{x2=(-(-5)-sqrt(49))/(2*2)}}}
..
x2=-0.5