Tolong dijawab no. 22!!please pake cara

(2x – 3)(4x² + 6x + 9)
= 2x(4x² + 6x + 9) – 3(4x² + 6x + 9)
= 8x³ + 12x² + 18x – 12x² – 18x – 27
= 8x³ + 12x² – 12x² + 18x – 18x – 27
= 8x³ – 27