Question

x^2 +1/x^2 -11


answer is. (x-1/x+3)(x-1/x-3)​

Answer 1

SOLUTION:-

x^2 + 1/x^2 - 11

=x^2+1/x^2-11+2-2

=(x^2-2+1/x^2)-11+2

=(x^2-2.x.1/x+1/x^2)-9

=(x-1/x)^2 - (3)^2

=(x-1/x+3) (x-1/x-3)

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