Question

with full calculation please help me​

Answer 1

Answer:

This is the answer

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Answer 2

Answer:

$\tt \implies{x}^{2} + \frac{1}{ {x}^{2} } = 47$

Step-by-step explanation:

Using identity:-

$\implies \tt ({x + \frac{1}{x} })^{2} = {x}^{2} + \frac{1}{ {x}^{2} } + 2 \times x \times \frac{1}{x} = {x}^{2} + \frac{1}{ {x}^{2} } + 2$

Now put the values in above identity

$\implies \tt {7}^{2} = {x}^{2} + \frac{1}{ {x}^{2} } + 2 \\ \tt \implies49 - 2 = {x}^{2} + \frac{1}{ {x}^{2} } \\ \tt \implies {x}^{2} + \frac{1}{ {x}^{2} } = 47$