Question

if alpha and beta are roots of x^2-x+2=0, then alpha+beta+alphabeta

is​

Answer 1

Step-by-step explanation:

$\alpha \beta = \frac{c}{a} \\ \alpha + \beta = \frac{ - b}{a} \\ \\ threfore : \: \alpha \beta + \alpha + \beta = \frac{ - b + c}{a}$

Answer 2

Answer:

Hope it will be helpful for you