Answered

Bonjour pouvez m’aidez
Developper l’expression (a-b)(a2+ab+b2)
Merci d’avance

Sagot :

Bonjour,

(a-b)(a²+ab+b²)

a*a² = a³

a*ab = a²b

a* b² = a²b²

-b* a² = -a²b

-b* ab = ab²

-b * b² = -b³

=>

a³ -b³ +a²b  -a²b  +ab -b³=

a³ +ab