Question

(3c + ac)³ forma reduzida

Answer 1

[(3c + ac) * (3c + ac)] * (3c + ac)

= [9c² + 3ac² + 3ac² + (ac)²] * (3c + ac)

= [9c² + 6ac² + a²c²] * (3c + ac)

= 27c³ + 9ac³ + 6ac³ + 6a²c³ + a²c³ + a³c³

= 27c³ + 15ac³ + 7a²c³ + a³c³