Question

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



repede repede !!!!

Answer 1

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