Factorize each of the following algebraic expressions.
(2x - 3y) (a + b) + (3x - 2y) (a + b)
= (a + b) {2x - 3y + 3x - 2y}
{ (a + b) is common }
= (a + b) (5x - 5y)
= 5 (a + b) (x - y)
3a(x−2y)−b(x−2y)