bonjour
(^) signifie puissance
A = 45 x 4 x 10^12-26 = 180 x 10^-14
B = ( 2.5 x 10^9)² = 6.25 x 10^18
C = 36/3 x 10^15+17 = 12x10^32
D = (36 x 25 x 10^-6+5) / ( 4.5 x 10 ^-4 ) = 900 x 10^-1 / 4.5 x 10 ^-4
= 200 x 10^-1+4 = 200 x 10 ^3
E = 5.8 x 8 x 10 ^-1 / 14 x 16 x 10 ^-10
= 46.4 /224 x 10^9 = 0.21 x 10^9
