Factorize each of the following algebraic expressions:
(2x − 3y)(a + b) + (3x − 2y)(a + b)

$$\begin{gathered} (2x-3y)(a+b)+(3x-2y)(a+b) \\ =(2x-3y+3x-2y)(a+b)[Taking(a+b)asthecommonfactor] \\ =(5x-5y)(a+b) \\ =5(x-y)(a+b)[Taking5asthecommonfactorof(5x-5y\left)\right] \end{gathered}$$