Réponses

  • Utilisateur Brainly
2014-04-10T19:03:12+02:00
A= 3x-5+5(2x-2)
A= 3x-5+10x-10
A= 13x-15

B= 4y-6(3-2y)+4(y-1)
B= 4y-18+12y+4y-4
B= 20y-22

C= 5t²+3(2t-3)-2t(t-5)
C= 5t²+6t-9-2t²+10t
C= 3t²+16t-9