EMILYDGL
Answered

C(x) = 3(2x-1)[tex] ^{2} [/tex] - 2(1+x)[tex] ^{2} [/tex]
Developper.

Sagot :

DROOPETTE
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