Which shows one way to determine the factors of 12 x cubed minus 2 x squared plus 18 x minus 3 by grouping?

Group the polynomial as (12x³ − 2x²) + (18x − 3). Factor each group: 2x²(6x − 1) + 3(6x − 1). Both terms now share the factor (6x − 1), so choice B shows the grouping correctly.

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