bonsoir
A ) 2 ² x 8 ⁻⁴
= 2 ² x ( 2 ³)⁻⁴ = 2 ² x 2 ⁻¹² = 2 ⁻¹⁰
B ) 3² x 3 ⁴ : 3 ⁵ x 3 ³
= 3 ⁶ : 3 ⁸
= 3 ⁻²
c ) 3 ² x 7 ⁴ : 3 ⁵ x ( 3 x 7 ) ⁴
= 3 ² x 7 ⁴ : 3 ⁹ x 7 ⁴
= 3 ⁻⁷ / 3 ⁵
D ) 3 ² x 3 ³ = 3 ⁵
E ) 4 ² x 4 ⁻³ x ( - 4 ) ⁻⁴ x 4
= - 4 ⁻⁴
f ) ( 4²) ³ x ( - 4 ) ⁻³ x ( - 4 ) ⁻⁴ x 4
= 4 ⁰ = 1
