Simplify:
$x^{2} + 9 x + 18$

(x - 6) (x + 3)

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(x + 18) (x - 3

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(x + 6) (x + 3)

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(x + 9) (x + 2)

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Solution

The correct option is C $(x + 6) (x + 3)$
$x^{2} + 9 x + 18$
$= x^{2} + 6 x + 3 x + 18$
$= x (x + 6) + 3 (x + 6)$
$= (x + 6) (x + 3)$

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