Respuesta :

Answer:

[tex]\frac{a^{2} + ab }{b}[/tex]

Step-by-step explanation:

(a + b) * ([tex]\frac{a}{b}[/tex]) = [tex]\frac{a * (a+b)}{b}[/tex] = [tex]\frac{a^{2} + ab }{b}[/tex]