Answer
$2x+5$
Work Step by Step
$\begin{array}{rrrr}
\underline{2}| & 2 & 1 & -10\\
& & 4 & 10\\
& -- & -- & --\\
& 2 & 5 & 0
\end{array}$
Quotient = $2x+5$
Remainder = 0
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