Réponses

2013-12-09T18:51:14+01:00
A = t²+81+18t
=(t+9)²

B=4x²-4xy+y²
=(2x-y)²

C=81+16y²-72y
=(9-4y)²

D=x²+36-12x
=(x-6)²

E=4/9p²+4/3pq+q²
=(2/3p+q)²

F=pi²+10pi+25
=(pi
+5)²