Respuesta :

Answer:

[tex]D)~~ 5a^2 +20a -5a -5[/tex]

Step-by-step explanation:

[tex]5a^2 +20a -5a -5 = 5a^2 +15a -5[/tex]

Answer:

D

Step-by-step explanation:

5a2 is same, -5 is same and 20a - 5a is same as 15a