Question

upon for mine is under 5 plus 4 minus under 5 a pound for press Underwood 5

Answer 1

$= \frac{4 - \sqrt{5} }{4 + \sqrt{5} } + \frac{4 + \sqrt{5} }{4 - \sqrt{5} } \\ = \frac{ ({4 - \sqrt{5} )}^{2} }{16 - 5} + \frac{ ({4 + \sqrt{5} )}^{2} }{16 - 5}$
$= \frac{16 + 5 - 8 \sqrt{5} }{11} + \frac{16 + 5 + 8 \sqrt{5} }{11} \\ = \frac{21 + 21}{11} \\ = \frac{42}{11}$
is the answer