Answer
$4x^2+1-\dfrac{3}{5x-2}$
Work Step by Step
Using the long division below, then
\begin{array}{l}\require{cancel}(
20x^3-8x^2+5x-5
)\div(
5x-2
)\\=
4x^2+1-\dfrac{3}{5x-2}
.\end{array}
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