Question

If (x²) + (1/x²) =7 and x≠7 then (x)- (1/x) will be

Answer 1

Answer:

Step-by-step explanation:

Given that,

x² + 1/x² = 7

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

7 = ( x - 1/x )² + 2

7 - 2 = ( x - 1/x )²

5 = ( x - 1/x )²

( x - 1/x )= √5 is the answer.