Sagot :
Bonjour,
A=-(-3)+(-2) – (+4)-(-1)
-(-3)+(-2) =+3 -2 = 1
1 – (+4) = 1-4 = -3
-3 -(-1) = -3+1 = -2
B=-(-2+1) × (-2 – 1)-(-1-1) (-2-2)
-(-2+1) = 2+1= 3
3 × (-2 – 1) = 3* -3 = -9
(-1-1) (-2-2) = -2* -4 = 8
-9 - 8 = -17
C = 4+ (21 + 3 - 5 x 2) (4 – 3 x3)
4+
(21 + 3 - 5 x 2)=21+3-10 = 14
(4 – 3 x3) = 4-9 = -5
14 * -5 =-70
4-70 = -66
Réponse :
Explications étape par étape :
A = -(-3) + (-2) - (+4) - (-1) = -2 . B = -(-2+1) x (-2 - 1) - (-1-1) (-2-2) = -11 . C = 4+ ( 21 = 3 - 5 x 2 ) (4 - 3 x 3) = -66 . J ' espère t ' avoir aider .