Question

( lim _{x}=frac{3-4}{121} )
( Rightarrow x^{2}-x=6-4 )
( Rightarrow x^{2}-x-2=0 )
( x^{2}-2 x+x-2=0 )
( frac{(x-2)(x+1)=0}{x=-1,2} )
Positive value ( =2 )

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Solution

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Solution