Question

what is the value of alpha and beta in the given question

Answer 1

$2 {x}^{2} + 4x - 5 \\ \alpha + \beta = \frac{ - 4}{2} = - 2 \\ \alpha \beta = \frac{c}{a} = \frac{ - 5}{2} \\ \frac{1}{ \alpha } + \frac{1}{ \beta } = \frac{ \alpha + \beta }{ \alpha \beta } = \frac{ - 2}{ \frac{ - 5}{2} } = \frac{4}{5} ans$