Rational function/Limit/Hospital/x^4+2x^3-3x^2-4x+4 over 2x^3-x^2-4x+3/a is 1/Exercise

Determine the limit of the rational function

${\frac {x^{4}+2x^{3}-3x^{2}-4x+4}{2x^{3}-x^{2}-4x+3}}$

at the point ${}a=1$.

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