Sagot :
Réponse :
A=2 (4b-5)- 6 (2+3b)+3 (4b-1)
= 2 x 4b - 2 x 5 - 6 x 2 - 6 x 3b + 3 x 4b + 3 x (-1)
= 8b - 10 - 12 - 18b + 12b - 3
= 8b - 18b + 12b - 10 - 12 - 3
= - 10b + 12b - 25
= 2b - 25
Bonjour,
A=2 (4b-5)-6 (2+3b)+3 (4b-1)
= 8b -10 -12 -18b +12b -3
= 2b -25
