bonjour
A = 2 + 2 ³ x 7²
= 2 + 8 * 49
= 394
B = ( - 3 ) ³ + 2 x 5 ²
= - 27 + 2 x 25
= - 27 + 50
= 23
C = [ 2 x 3 - ( - 2 )³ ] : 2 ²
= [ 6 - ( - 8 )] : 4
= 14 : 4
= 7 /2
D = [ 53 - 2 x ( - 5 )²]²
= ( 53 - 2 * 25 ) ²
= ( 53 - 50 )²
= 3 ²
= 9
bonne journée
