Pourriez vous m'aider s'il vous plait? Juste l'exercice 2, merci

 bonjour

a = 5 + 4 x 3²
a = 5 + 4 x 9
a = 5 + 36 = 41

b = ( 5 + 4)³ x 3 ⁻²
b = 9³ x 3 ⁻²
b = 729 x 1/9 = 729/9 = 81

c = 2³ + 5³
c = 8 + 125 = 133

d = 3/8 - 5/6
d = 18/48 - 40/48
d = - 22/48 = - 11/24

e = 2/5 - 1/5 x 4/3
e = 2/5 - 4/15
e = 6/15 - 4/15
e = 2/15