Réponse :
Explications étape par étape
Ex 4
A = 3² * 5² = 15² même exposant
B = 3 * 3⁴ * 3⁷ = 3¹⁺⁴⁺⁷ = 3¹² même base
C = ( -3 ) * ( -3 )⁴ = ( -3 )¹⁺⁴ = ( -3 )⁵
D = ( -2 )³ * (-3)³ * ( -4 )³ = ( -24 )³
E = 3² * 4² = 12²
F = 6⁴ * ( -7 )⁴ = 6⁴ * 7⁴ = 42⁴ ( -7 )⁴ exposant pair
G = ( 3⁷ )³ = 3⁷ˣ³ = 3²¹
H = ( 2⁴ )³ * 2⁵ = 2⁴ˣ³ * 2⁵ = 2¹²* 2⁵ = 2¹²⁺⁵ = 2¹⁷
I = ( 5² )⁴ * 5 = 5²ˣ⁴ * 5 = 5⁸ * 5¹ = 5⁸⁺¹ = 5⁹
Ex 5
A = 2⁴ * 2⁶ = 2⁴⁺⁶ = 2¹⁰
B = ( -2 )³ * ( -2 )⁷ = ( -2 ) ³⁺⁷ = ( -2 )¹⁰ = 2¹⁰ exposant pair
C = 2⁶ * 2 = 2⁶ * 2¹ = 2⁶⁺¹ = 2⁷
D = a¹¹ * a⁸ = a¹¹⁺⁸ = a¹⁹
E = a³ * a * a² = a³ * a¹ * a² = a ³⁺¹⁺² = a⁶
F = 3² * 4² = 12²
G = ( -2 )³ * 5³ = ( -10 )³ ( -10 )³≠ -10³ laisser la parenthèse
H = ( a³ )² * a = a³ˣ² * a = a⁶ * a¹ = a⁶⁺¹ = a⁷
I = a¹⁵ * a * a⁻⁶ = a¹⁵ * a¹ * a⁻⁶ = a¹⁵⁺¹⁻⁶ = a¹⁰
J = ( a * a³ )² = ( a¹ * a³ )² = ( a¹⁺³)² = ( a⁴ )² = a⁸ Parenthèses en premier
K = a⁻² * a¹² * a⁻⁴ = a⁻²⁺¹²⁻⁴ = a⁶
