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What is the difference of the factors of the expression x2 + (1/x2) – 6 ?

 What is the difference of the factors of the expression x2 + (1/x2) – 6  ?
 

Grade:12th pass

1 Answers

Ritesh Khatri
76 Points
6 years ago
x2+ 1/x2 – 6
= x2+ 1/x2 – 2 – 4
= x2+ 1/x2 – 2(x)(1/x) – 4
=(x – 1/x)2 – 22
=(x – 1/x + 2)(x – 1/x  – 2)
 
their absolute difference is 4

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