Sagot :
bjr
cours
k(a+b) = k*a + k*b * = multiplié par
donc on applique et on aura
A = 2 * 6x + 2 * 8 = 12x + 16
B = 6 * 4x + 6 * 8 = 24x + 48
à vous :)
Réponse :
Bonjour,
A = 2(6x + 8)
= 2 * 6x + 2 * 8
= 12x + 16
B = 6(4x + 8)
= 6 * 4x + 6 * 8
= 24x + 48
C = 10(4x + 5)
= 10 * 4x + 10 * 5
= 40x + 50
D = 4(3x + 4)
= 4 * 3x + 4 * 4
= 12x + 16
E = 4(6x + 12)
= 4 * 6x + 4 * 12
= 24x + 48
F = 5(8x + 10)
= 5 * 8x + 5 * 10
= 40x + 50
Bon courage ^-^