Répondre :
bonsoir
a )f(x) = 2x²+x-1 ⇔ f ' = 4 x + 1
b )f(x) = 4.x² + 8.x +4 ⇔ f ' = 8 x + 8
C)f(x) = x² - 3.x +3 ⇔ f ' = 2 x - 3
d )f(x) = -2x² +2 ⇔ f ' = - 4 x + 2
E) f(x) = x² - 3.x +4 ⇔ f ' = 2 x - 3
F) f(x) = 0,4x² + x - 4 ⇔ f ' = 0.8 x + 1
bonsoir
a )f(x) = 2x²+x-1 ⇔ f ' = 4 x + 1
b )f(x) = 4.x² + 8.x +4 ⇔ f ' = 8 x + 8
C)f(x) = x² - 3.x +3 ⇔ f ' = 2 x - 3
d )f(x) = -2x² +2 ⇔ f ' = - 4 x + 2
E) f(x) = x² - 3.x +4 ⇔ f ' = 2 x - 3
F) f(x) = 0,4x² + x - 4 ⇔ f ' = 0.8 x + 1