bonjour
a = 55 x 10 ¹¹ : 22 x 10 ⁵
= 2.5 x 10 ⁶
B ) 3 675 x 10 : 35 x 10 ⁻⁶
= 105 x 10 ⁷
= 1.05 x 10 ⁹
C = 1.5 x 10 ⁻¹ : 4 x 10 ⁻⁴
= 0.375 x 10 ³
3.75 x 10 ²