Question

plese any genius or expert answer​

Answer 1

Answer:

this is the solution

please thank if it helps you

Answer 2

Answer:

${x }^{2} + \frac{1}{ {x}^{2} } = 51$

Step-by-step explanation:

$x - \frac{1}{x} = 7 \\ squaring \: on \: both \: the \: sides \\ {(x - \frac{1}{x}) }^{2} = {(7)}^{2} \\ {(x)}^{2} + { (\frac{1}{x} ) }^{2} - 2(x)( \frac{1}{x} ) = 49 \\ {x}^{2} + \frac{1}{ {x}^{2} } - 2 = 49 \\ {x}^{2} + \frac{1}{ {x}^{2} } = 49 + 2 \\ {x }^{2} + \frac{1}{ {x}^{2} } = 51$