Question

plz solve my question

Answer 1

$\alpha + \beta = \frac{1}{21} \\ \alpha \beta = \frac{ - 2}{21} \\ 2 \alpha + 2 \beta = 2( \alpha + \beta ) = \frac{2}{21} \\ 2 \alpha (2 \beta ) = 4 \alpha \beta = \frac{ - 8}{21}$
so the polynomial is
${y}^{2} - \frac{2}{21} y - \frac{8}{21} \\ 21 {y}^{2} - 2y - 8$