Website Statistics Cx 32x1tex 2 tex 21xtex 2 texDevelopper

Répondre :

C(x) = 3(2x-1)² - 2(1+x)²
=3(4x²-4x+1)-2(1+2x+x²)
=12x²-12x+3-2-4x-2x²
=10x²-16x+1

D'autres questions