👤

Restringeti in patrate:
a) [tex] a^{2} + 2ay + y^{2} [/tex] ;
b) [tex] b^{2} + c^{2} - 2bc[/tex] ;
c) [tex]2xz + z^{2} + x^{2} [/tex] ;
d) 9-6y + [tex] y^{2} [/tex]



repede repede !!!!


Răspuns :

a) a²+2ay+y²=(a+y)²

b) b²+c²-2bc=(b-c)²

c) 2xz+z²+x²=(x+z)²

d) 9-6y+y²=(3-y)²