Question

plzz solve question 11​

Answer 1

Answer:

$\alpha - \beta = \frac{ \sqrt{d} }{a} = 2 \\ \\ = \frac{ \sqrt{ {8}^{2} - 4k} }{1} = 2 \\ \\ = > 64 - 4k = 4 \\ \\ so \: \: \: \: k = 15$