x-1/x=5.find x²+1/x²
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Answer:
27
Step-by-step explanation:
We know x – 1/x = 5
So (x – 1/x )^2 = 52
x^2 – 2 + (1/x)^2 = 25
x^2 + (1/x)^2 = 25 + 2
x^2 + (1/x)^2 = 27
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