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Follow the steps below to solve the inequality $36 + 6x - x^2\le 20\text{.}$

Rewrite the inequality so that the right side is zero.
$\le 0$

Graph the equation $y = 16 + 6x - x^2\text{.}$

Locate the points on the graph with $y$ -coordinate less than zero, and mark the $x$ -coordinates of the points on the $x$ -axis.

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