Sagot :
Bonjour
Calculer les expressions suivantes sachant que:
a = -3;
b = 8;
C=-5.
C= axb-axc
C = - 3 x 8 - (- 3) x (- 5)
C = - 24 - 15
C = - 39
B=axc+b
B = - 3 x (- 5) + 8
B = 15 + 8
B = 23
A=ax(b + c)
A = - 3 x (8 - 5)
A = - 3 x 3
A = - 9.
C = -3x8 - (-3x-5)
=-24-15
=-39
B=-3x-5 +8
B=15+8
B=23
A= -3x(8+(-3))
A= -3x5
A=-15
=-24-15
=-39
B=-3x-5 +8
B=15+8
B=23
A= -3x(8+(-3))
A= -3x5
A=-15