bonjour
profil pas à jour = collège
A = -7 + 7 (-3) + 5 x[-5+ (-2)]
A = - 7 - 21 + 5 ( - 5 - 2 )
A = - 7 - 21 + 5 * - 7
A = - 7 - 21 - 35
A = - 63
B = -4+2 x [-3x (5 - 7)-9)
B = - 4 + 2 ( - 3 * - 2) - 9
B = - 4 + 2 * 6 - 9
B = - 4 + 12 - 9 = - 1
Bonjour,
A = -7 + 7 (-3) + 5 x[-5+ (-2)]
= -7 -21 +5(-7)
= -7 -21 -35
= -63
B = -4+2 x [-3x (5 - 7)-9)
= -4 +2* [ -3* -2-9]
= -4 +2*(6 -9)
= -4 +2* -3
= -4 -6
= -10
