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bonjour

A = 8 ² x 8 ⁻³ x 8 ⁷

A = 8 ⁶

B  = 11 ⁻⁸ x 11 ⁷/ 11 ⁻⁴

B  = 11 ⁻¹ / 11 ⁻⁴

B  = 11 ³

C  = ( - 3 ) ⁶ x ( - 3 ) ⁻⁸ / ( - 3 ) ⁻⁷

C =  ( - 3 ) ⁻² ) / ( - 3 ) ⁻⁷

C  = ( - 3 ) ⁵

Bonjour,

A = 8² × 8⁻³ × 8⁷ = 8²⁺⁽⁻³⁾⁺⁷ = 8⁶

B = 11⁻⁸ × 11⁷/11⁻⁴ = 11⁻⁸⁺⁷⁻⁽⁻⁴⁾ = 11³

C = ((-3)⁶ × (-3)⁻⁸) / (-3)⁻⁷ = (-3)⁶⁺⁽⁻⁸⁾⁻⁽⁻⁷⁾ = (-3)⁵

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