Bonjour,
Mettre la consigne la prochaine fois!
Développer:
f(x)=3x(2x-1)(4-5x)
f(x)= 3x(8x-4-10x²+5x)
f(x)= 3x(-10x²+13x-4)
f(x)= -30x³+39x²-12x
g(x)= (2x-1)(3x-7)(4x-8)
g(x)= (2x-1)(12x²-28x-24x+56)
g(x)= (2x-1)(12x²-52x+56)
g(x)= 24x³-104x²+112x-12x²+52x-56
g(x)= 24x³-116x²+164x-56
