Question

solve this for me guys​

Answer 1

Answer:

(x+1/x)²=x²+1/x²+2×x/x

18²=x²+1/x²+2

324-2

=322

Answer 2

Answer:

x2+1/x2=18

subtract 2.x.1/x on both sides

x2+1/x2-2.x.1/x=18-2.x.1/x

(x-1/x)2=18-2

x-1/x=16

Step-by-step explanation:

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