Question
If $f(m)=m^2-3 m+1$, find : $f(x+1)$

Answer

$
\begin{aligned}
& f(x+1)=(x+1)^2-3(x+1)+1 \\
& =x^2+2 x+1-3 x-3+1 \\
& =x^2-x-1
\end{aligned}
$

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