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Sagot :

Réponse :

2⁶ = (2³)² = 8² = 64

(- 3)⁵ = (-3)² x (- 3)² x (- 3)¹ = 9 x 9 x (-3) = - 243

7³ = 7² x 7¹ = 49 x 7 = 343

(-5)⁴ = ((-5)²)²  = 25² = 625

5⁻² = 1/5² = 1/25 = 0.04

Explications étape par étape

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