What is the factored form of 6 n to the 4th power minus 24 n cubed plus 18 n ?

The greatest common factor of 6n⁴, −24n³, and 18n is 6n. Dividing each term by 6n gives n³, −4n², and 3, so the expression factors as 6n(n³ − 4n² + 3). This matches choice C.

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