Question

Can someone explain to me how to find the roots of an Quadratic?

Answer 1

\[x^2-(\alpha+\beta)x+\alpha \beta=0\]
\[ax^2-bx+c=0\]
\[\alpha+\beta=-\frac{ b }{ a }\]
\[\alpha \beta=\frac{ c }{ a }\]

Answer 2

That's finding the sum of roots. Roots of a quadratic is just find the values of x.