Question
Find roots of polynomial $$ p(x) = -6x+162x-1680 $$
Answer
The root of polynomial $ p(x) $ is:
$$ \begin{aligned}x &= \dfrac{ 140 }{ 13 } \end{aligned} $$Explanation
Step 1:
Combine like terms:
$$ \color{blue}{-6x} + \color{blue}{162x} -1680 = \color{blue}{156x} -1680 $$Step 2:
$$ \begin{aligned} 156x-1680 & = 0 \\[1 em] 156 \cdot x & = 1680 \\[1 em] x & = \frac{ 1680 }{ 156 } \\[1 em] x & = \frac{ 1680 : 12 }{ 156 : 12} \\[1 em] x & = \frac{ 140 }{ 13 } \end{aligned} $$This page was created using
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