Which shows one way to determine the factors of x cubed plus 5 x squared minus 6 x minus 30 by grouping?

Group the first two terms and the last two terms: (x³ + 5x²) + (−6x − 30). Factoring each group gives x²(x + 5) − 6(x + 5), matching the choice with x + 5 in both parentheses.

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