Question

for quadratic equation if a=3
b= -l2 and c=9
find
$\alpha + \beta$
​

Answer 1

Answer:

$if \: \alpha \: and \: \beta \: are \: the \: roots \: of \: the \\ quadratic \: equation \: then \: \alpha + \beta = \frac{ - b}{a}$

So, the answer will be 4.