1) (4a³b²-12a²b³) = 4a³b² - 12a²b³ = 4a²b²(a - 3ab)
(4a²b²(a - 3ab)) ÷ (2ab) = 2a²b(a - 3ab)
2) (5a-2b) (3a+4b) = 5a 3a + 5a 4b - 2b 3a - 2b * 4b= 15a² + 20ab - 6ab - 8b²= 15a² + 14ab - 8b²
1) (4a³b²-12a²b³) = 4a³b² - 12a²b³ = 4a²b²(a - 3ab)
(4a²b²(a - 3ab)) ÷ (2ab) = 2a²b(a - 3ab)
2) (5a-2b) (3a+4b) = 5a 3a + 5a 4b - 2b 3a - 2b * 4b
= 15a² + 20ab - 6ab - 8b²
= 15a² + 14ab - 8b²