Réponse :
bonsoir
Explications étape par étape :
EXERCICE 8
quelques rappels
aⁿ x aᵇ=aⁿ⁺ᵇ
(aⁿ)ᵇ = aⁿˣᵇ
aⁿ/aᵇ=aⁿ⁻ᵇ
aⁿ × bⁿ=(axb)ⁿ
3⁴x3² = 3⁴⁺²=3⁶
4³x4⁻⁵ = 4³⁻⁵=4⁻²
(-5)⁻⁴x(-5)⁻³ = (-5)⁻⁴⁻³=(-5)⁻⁷
2⁴/2⁵=2⁴⁻⁵ = 2⁻¹
3²/3⁻³ = 3²⁻⁽⁻³⁾ = 3²⁺³ = 3⁵
(7²)³ = 7³ˣ² = 7⁶
(4⁻²)³ = 4⁻²ˣ³ = 4⁻⁶
((-1)²)⁻³ = (-1)²ˣ⁻³ = (-1)⁻⁶ = 1
7⁵x2⁵ = (7x2)⁵ = 14⁵
3⁻⁴x5⁻⁴ = (3x5)⁻ ⁴= 15⁻⁴
8³x4³ = (4x8)³ = 32³
bonne soirée
