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Sagot :

SYLVIA38

Réponse :

Bonjour

Explications étape par étape :

F = (15^3 * 3^-2 * 45^-2)/5^2

F = (5^3*3^3*3^-2*3^-2*3^-2*5^-2)/5^2

F = [ 5^((3+(-2)) * 3^((3+(-2)+(-2)+(-2)]/ 5^2

F = (5^1/5^2) * 3^-3

F = 3^-3 * 5^(1-2)

F = 3^-3 * 5^-1

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