Sagot :
D= a + b + 2c
= 4 + 2 + 2*3
= 4 + 2 + 6
= 12
E= 3(c + a) + 3b
= 3(3 + 4) + 3*2
= 3*7 + 6
= 21 + 6
= 27
= 4 + 2 + 2*3
= 4 + 2 + 6
= 12
E= 3(c + a) + 3b
= 3(3 + 4) + 3*2
= 3*7 + 6
= 21 + 6
= 27