factorize using algebraic identities: x^2+1/x^2+2
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( x + 1/x )^2
Step-by-step explanation:
x^2 +1/2^2 + 2 = ( x^2 )+ ( 1/x^2 )+( 2×x×1/x) = ( x+1/x )^2 . {a^2+b^2+2ab} = { a+b }^2
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