Réponse :
5) F = [((- 3)⁴)⁻² x (- 3)]/(-3)⁻³ = (- 3)⁻⁸ x (-3)/(-3)⁻³ = (- 3)⁻⁸⁺¹/((-3)⁻³ = (- 3)⁻⁷/(-3)⁻³
= (- 3)⁻⁷ x (-3)³ = (-3)⁻⁷⁺³ = (-3)⁻⁴ = 1/(-3)⁴ = 1/81
G = (7¹³ x 7⁻⁹/7⁻¹⁴ x 7⁻⁸)² = (7¹³⁻⁹/7⁻¹⁴⁻⁸)² = (7⁴/7⁻²²)² = (7⁴ x 7²²)²
= (7⁴⁺²²)² = (7²⁶)² = 7⁵²
Explications étape par étape