Sagot :
Bonsoir,
a.6(3a + 2)
= 18a +12
b.(5 - b) x a
= 5a -ab
c. a(1 + a)
= a+a²
Bonsoir,
A = 6(3a+2)
A = 6×3a+6×2
A = 18a+6×2
A = 18a+12
B = (5-b)×ac
A = 5ac-abc
C = a(1+a)
C = a+a×a
C = a+a²
Bonne soirée.
Bonsoir,
a.6(3a + 2)
= 18a +12
b.(5 - b) x a
= 5a -ab
c. a(1 + a)
= a+a²
Bonsoir,
A = 6(3a+2)
A = 6×3a+6×2
A = 18a+6×2
A = 18a+12
B = (5-b)×ac
A = 5ac-abc
C = a(1+a)
C = a+a×a
C = a+a²
Bonne soirée.