bjr
1)
C = 17⁻⁸ x (17⁷ / 17⁻⁴) (1/17⁻⁴ = 17⁴)
C = 17⁻⁸ x 17⁷ x 17⁴) (on ajoute les exposants)
C = 17⁻⁸⁺⁷⁺⁴
C = 17³
2)
D = ((-6,7)⁻⁴)³ (on multiplie les exposants)
D = (-6,7)⁻¹² (-4 x 3 = -12)
3)
E = 27 x (3¹²)ⁿ (27 = 3³ et (3¹²)ⁿ = 3¹²ⁿ
E = 3³ x 3¹²ⁿ
E = 3³⁺¹²ⁿ
E = 3¹²ⁿ⁺³
4)
F = 15⁶ / 5⁶
F = (3 x 5)⁶ / 5⁶
F = 3⁶ x 5⁶ / 5⁶
F = 3⁶
