Question
Find roots of polynomial $$ p(x) = 250+20x $$
Answer
The root of polynomial $ p(x) $ is:
$$ \begin{aligned}x &= -\dfrac{ 25 }{ 2 } \end{aligned} $$Explanation
$$ \begin{aligned} 250+20x & = 0 \\[1 em]
20 \cdot x & = -250 \\[1 em]
x & = - \frac{ 250 }{ 20 } \\[1 em]
x & = - \frac{ 250 : 10 }{ 20 : 10} \\[1 em]
x & = -\frac{ 25 }{ 2 }
\end{aligned} $$
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