1. Sederhanakan hasil kali bentuk aljabar dari a. 4(3a + 2) b. (x+3)(x-2) c.(2x - 1)(x + 2y - 3)

a. 4(3a + 2)→ (4×3a)+(4×2) = 12a + 8
b. (x + 3)(x - 2)→ (x × 3) + (x × (-2)) + (3 × x) + (3 × (-2))= 3x - 2x + 3x -6= 4x - 6
c. (2x - 1)(x + 2y - 3)→ (2x × x) + (2x × 2y) + (-1 × (-3)) + (-1 × x) + (-1 × 2y) + (-1 × (-3)= 2x² + 4xy + 3 - x - 2y + 3= 2x² + 4xy + 6 - x - 2y