Question

calcule:
(a+b) . (a^2+b^2) . (a-b)
urgente plmdds!!!

Answer 1

(a+b).(a²+b²).(a-b) = (a+b).(a-b).(a²+b²)

(a+b).(a²+b²).(a-b) = (a²-b²).(a²+b²)

(a+b).(a²+b²).(a-b) = [ (a²)² - (b²)² ]

(a+b).(a²+b²).(a-b) = $a^{4} - b^{4}$