Question

if x+1/x=5 then x²+1/x²=​

Answer 1

Answer:

23

Step-by-step explanation:

x + 1/x = 5

squaring both side , we get

x² + ( 1 / x² ) + 2 ( x ) ( 1 / x ) = 5²

x² + ( 1 / x² ) + 2 = 25

x² + ( 1 / x² ) = 23

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