Question

if x=
$\frac{2}{3 + \sqrt{7} }$
find the value of
$x ^{2} - 13x^{2} + 17x + 12$


​

Answer 1

if x=

$\frac{2}{3 + \sqrt{7} }$

find the value of

$x ^{2} - 13x^{2} + 17x + 12$