Question

Hey guys . Very good evening. Please solve . urgent.

x² + 1/x² = 7

Find (x + 1/x)​

Answer 1

Answer:

please sign up best please

Answer 2

$\: \: \: \: \: {(x + \frac{1}{x}) }^{2} \\ \\ = {x}^{2} + \frac{1}{ {x}^{2} } + 2.x. \frac{1}{x} \\ = 7 + 2 \\ = 9$

Since,

$\: \: \: \: \: \: \: \: \: \: {(x + \frac{1}{x}) }^{2} = 9 \\ = = > (x + \frac{1}{x} ) = \sqrt{9} = 3$