Question

plz answer fast
nd plz explain step by step
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Answer 1

Answer:

${x}^{2} + \frac{1}{ {x}^{2} } = 11$

Step-by-step explanation:

$x - \frac{1}{x} = 3 \\ squaring \: on \: both \: the \: sides \\ {(x - \frac{1}{x} )}^{2} = {(3)}^{2} \\ {(x)}^{2} - 2(x)( \frac{1}{x}) + { (\frac{1}{x}) }^{2} = 9 \\ {x}^{2} - 2 + \frac{1}{ {x}^{2} } = 9 \\ {x}^{2} + \frac{1}{ {x}^{2} } = 9 + 2 \\ {x}^{2} + \frac{1}{ {x}^{2} } = 11$

Answer 2

Answer:

plz thank my answers....... plz