bonjour
g (x) = x²
g ' (x) = 2 x
g (x) = - x² + 3 x
g ' (x) = - 2 x + 3
g ( t) = 1 + t²
g ' ( t) = 2 t
g (q) = 3 q² - q + 3
g ' = 6 q - 1
h (x) = 5 x² + 4 x - 5
h ' = 10 x + 4
h (x) = 12 x - 4 x² - 7
h ' = - 8 x + 12
h ( t) = - t² - 2 t + 2
h ' = - 2 t - 2
h (q) = 3 - 2 q + 7 q²
h ' = 14 q - 2