Question

 O desenvolvimento de (a³+ 5b)²

Answer 1

  (a³+ 5b)² = (a^3)^2 + 2.a^3.5b + (5b)^2
     
       a^6 + 10a^3.b + 25b^2

Answer 2

$(a^3+5b)^2=a^6+10a^3b+25b^2$