The roots of polynomial $ p(x) $ are:
$$ \begin{aligned}x_1 &= 6\\[1 em]x_2 &= 3 \end{aligned} $$Step 1:
Write polynomial in descending order
$$ \begin{aligned} x^2+18-9x & = 0\\[1 em] x^2-9x+18 & = 0 \end{aligned} $$Step 2:
The solutions of $ x^2-9x+18 = 0 $ are: $ x = 3 ~ \text{and} ~ x = 6$.
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