Answer
$27$
Work Step by Step
$\lim\limits_{x \to 3}x³ - 3x² + 9x$
= $\lim\limits_{x\to 3}x^3$ - $3\lim\limits_{x \to 3}x^2$ + $9\lim\limits_{x \to 3}x$
= $3^3 - 3\cdot 3^2 + 9\cdot 3$
= $27 - 27 + 27$
= $27$
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