Sagot :
bonjour,
- 10 ( 1 - 2 x ) = - 10 + 20 x
- 2 ( 3 c + 8 ) = - 6 c - 16
- 4 c ( 4 c + 8 ) = - 16 c² - 32 c
9 b ( 6 b - 2 ) = 54 b² - 18 b
- 9 ( 8 c + 6 ) = - 72 c - 54
Bonjour,
Calculer:
-10 (1 - 2x) = -10+20x
-2 (3c+ 8) = -6c-16
-4c (4c + 8) = -16c²-32c
9b (6b - 2) = 54b²-18b
-9(8c + 6)= -72c-54