Respuesta :

Step-by-step explanation:

(5a³-2)(5a³+2)

  1. 5a³×5a³+ 5a³×2 - 2× 5a³+ 5a³×2
  2. 5a³+10a³- 10a³ + 10a³
  3. 5a³+10a³ + 10a³-10a³
  4. 15a³ Answer