A = 21 x 10^-27 x 4 x 10^9
A = 64 x 10^-27 x 10^9
A = 64 x 10^-18
B = 30x10^56 / 2 x 10^-12
B= 15 x 10^56--(12)
B = 15 x 10^56+12
B = 15 x 10^68
EXO 2
C = 5x10^-3x12x10^5 /15x10^2x8x10^-5
C = 60 x 10^2 / 120 x10^-3
C = 10² / 2 x 10^-3
C = 1/2 x 10^5
C = 0,5 x 10^5
C = 5x10^-1 x 10^5
C = 5 x 10^4
D = 3 x10^2 x 1,2 x (10^-3)^4 / 0,2 x 10^-7
D = 3,6 x 10^2 x10^-12 / 0,2 x 10^-7
D = 3,6 x 10^-10 / 0,2 x 10^-7
D = 18 x 10^-3
D = 1,8 x10^-2
D = 0,0018