bonjour
1 962 x 10 ⁴ = 1.962 x 10⁷
146 x 10 ⁶ = 1.46 x 10 ⁸
24.5 x 10 ⁷ = 2.45 x 10 ⁸
B = 17/14 : 5/7 - 2 /5
B = 17/14 x 7/5 - 2 /5
B = 119 /70 - 2 /5
B = 17/10 - 2 /5
B = 17/10 - 4/10 = 13 /10
C = 9 y² + 24 y + 16 + 8 y² - 16 y + 2 y - 4
C = 17 y² + 10 y + 12
PGCD de 14 et 74 = 2
