Respuesta :

Answer:

(5r + 6)(5r² + 4)

Step-by-step explanation:

Given

25r³ + 30r² + 20r + 24 ( factor the first/second and third/fourth terms )

= 5r²(5r + 6) + 4(5r + 6) ← factor out (5r + 6) from each term

= (5r + 6)(5r² + 4)