Réponses

  • Utilisateur Brainly
2014-10-24T17:31:33+02:00
2014-10-24T17:32:19+02:00
(1/2x+1)²
= (1/2x)²+2*1/2x*1+1²
=1/4x²+x+1
=1/4x²+x+1