Question

Plzzzz solve this its urgent
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Answer 1

Answer:

Step-by-step explanation:

Attached below...hope it helps!

Answer 2

x²+1/x²=7

subtracting both sides by 2 we get

x²+1/x²-2=5

now, it is in the form of a²+b²-2ab

(x-1/x)²=5

x-1/x=√5