Question

x=5 , find x²-2+1/x²
$x=5 \: \: find \: x ^{2} - 2 + \frac{1}{x {}^{2} }$
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Answer 1

Answer:

23

Step-by-step explanation:

if value of x is 5

put 5 wherever is x

(5)²-2+1/(5)²

25-2+1/25

23+1/25    ( by cross multiply method 23x25+1x1)

575/25

23 is answer