Sagot :
Bonsoir
D = -1 + 3*(7-3)+ 4*-2
= -1 + 3 * 4 -8
= -9 + 12
= 3
E = 6 + 8 + 3 + 2 * -4 - 1
= 9 - 1 + 8 - 8
= 8 + 8 - 8
= 8
Bonne soirée
Bonsoir,
D= -1+3x(7-3) + (4)- 2
= -1 + 21 - 9 - 8
= 21 - 18
= 3
E= 6 + 8 + 3 + 2 x (-4) - 1
= 17 - 8 - 1
= 17 - 9
= 8