menggunakan cara distributif a.(2x + 3) (3x-2) b.(2×-1) (xpangkat 2-2x+4) tolong isikan lagi perlu pakai jalan please

a. (2x + 3) (3x - 2)
= 2x × 3x + 2x × (-2) + 3 × 3x + 3 × (-2)
= 6x² - 4x + 9x - 6
= 6x² + 5x - 6

b. (2x - 1) (x² - 2x + 4)
= 2x × x² + 2x × (-2x) + 2x × 4 + (-1) × x² + (-1) × (-2x) + (-1) × 4
= 2x³ - 4x² + 8x - x² + 2x - 4
= 2x³ - 5x² + 10x - 4