Question

Pl guys solve it is so hardd

Answer 1

Answer:

please Mark me as brainlist koi mujhe bhi thanks kar do

Step-by-step explanation:

ye toh mujhe bhi nhi aata

Answer 2

Answer:

$x = 9 - 4 \sqrt{5} \\ \\ \sqrt{x} - \frac{ 1}{ \sqrt{x} } = (9 - 4 \sqrt{5} ) - \frac{ 1}{(9 - 4 \sqrt{5}) } \\ \\ = \frac{ ({9 - 4 \sqrt{5}) }^{2} - 1}{9 - 4 \sqrt{5} } \\ \\ = \frac{81 + 80 - 72 \sqrt{5} - 1 }{9 - 4 \sqrt{5} } \\ \\ = \frac{160 - 72 \sqrt{5} }{9 - 4 \sqrt{5} } \\ \\ = \frac{8(20 - 9 \sqrt{5} )}{9 - 4 \sqrt{5} }$

please mark me brainlist ✔️✔️