Hasil dari (2 x + 5) (x + 3) (x - 1)

(2x + 5) (x + 3) (x - 1)
= (2x + 5) × (x + 3) × (x - 1)
= (2x² + 6x + 5x + 15) × (x - 1)
= (2x² + 11x + 15) × (x - 1)
2x³ - 2x² + 11x² - 11x + 15x - 15
2x³ + 9x² + 4x - 15
semoga membantu