Question
Find roots of polynomial $$ p(x) = 3-2x-x $$
Answer
The root of polynomial $ p(x) $ is:
$$ \begin{aligned}x &= 1 \end{aligned} $$Explanation
Step 1:
Combine like terms:
$$ 3 \color{blue}{-2x} \color{blue}{-x} = \color{blue}{-3x} +3 $$Step 2:
$$ \begin{aligned} -3x+3 & = 0 \\[1 em] -3 \cdot x & = -3 \\[1 em] x & = - \frac{ 3 }{ -3 } \\[1 em] x & = - \frac{ 3 : 3 }{ -3 : 3} \\[1 em] x & = 1 \end{aligned} $$This page was created using
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