bonjour
(10a)² = 10² x a² = 100a² Vrai
(ab)⁵ = a⁵ x b⁵ Faux
(-a/b)³ = -(a/b)³ = - (a³ / b³) Vrai
= -a³b³
2ⁿ + 2ⁿ = 2 x 2ⁿ = 2¹ x 2ⁿ = 2¹⁺ⁿ Vrai
(c⁻¹)⁻² = on multiplie les exposants
c² (et non 1/c²) Faux
-3a² = ... Faux
-(3b)² = - (3b) x (3b)
= - (3 x 3)(b x b) = -9b² Vrai
2ⁿ x 2ⁿ = (2 x 2)ⁿ = 4ⁿ Vrai
