Question

$\tt if \: x = \frac{1}{3 - \sqrt{8} } \\ \\ \tt then \: find \: the \: value \: of : - \\ \\ \tt {x}^{3} - 2 {x}^{2} - 7x + 5$

Answer 1

Answer of this Question Should be
$73 + 30 \sqrt{8}$