donne le résultat sous la forme 10n​

Réponse:

a) 10⁴ x 10⁷ = 10⁴+⁷ = 10¹¹

b) 10⁴÷10⁷= 10⁴–⁷ = 10-³

c) (10⁴)⁷ = 10⁴×⁷ = 10²⁸

d) 10-⁴ × 10⁷ = 10-⁴+⁷ = 10³

e) (10-⁴)⁷ = 10-⁴×⁷ = 10-²⁸

f) 10-⁴ ÷ 10⁷ = 10-⁴-⁷ = 10-¹¹

g) 10⁴ ÷ 10-⁷ = 10⁴-(-⁷) = 10⁴+⁷ = 10¹¹

h) 10-⁴ × 10-⁷ = 10-⁴+(-⁷) = 10¹¹

i) 10-⁷ × 10⁴ = 10-⁷+⁴ = 10-³

j) (10-⁷)-⁴ = 10-⁷×(-⁴) = 10²⁸