Math, asked by lienkhongthang, 10 months ago

5x+1/x=10, then x²+1/25x² is equal to​

Answers

Answered by Sreesha
2

Answer:

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Step-by-step explanation:

5x+1/x=10

squaring

25x² + 1/x² + 2*5x*1/x = 100

⇒ 25x² + 1/x² = 90

dividing thru out by 25

x² + 1/25x² = 90/25

                  = 18/5

                   = 3.6

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