x2+2+1/x2 factorise the following using identities
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Answer:
(x+1/x)^2
Step-by-step explanation:
! x^2+ 1/x^2+2 ----- Rearrange
! use the identity (x+1/x)^2 = x^2+ 1/x^2+2
! The answer is found by identities
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