(-7t+8)(3-5t)Celle la me conprend pas non plus
On développe :
(-7t+8)(3-5t) = (-7t)*3 + (-7t)*(-5t) + 8*3 + 8*(-5t) = -21t + 35t² + 24 -40t = 35t² - 61t + 24
Bonjour,
(-7t+8)(3-5t) =
-21t+35t²+24-40t=
35t²-61t+24
J'espère que tu as compris
a+
