a)
[tex] {(x + 4)}^{2} = {x}^{2} + 8x + 16[/tex]
b)
[tex] {(y + 3)}^{2} = {y}^{2} + 6y + 9[/tex]
c)
[tex] {(2x + 1)}^{2} = 4 {x}^{2} + 4x + 1[/tex]
d)
[tex] {(3y + 2)}^{2} = 9 {y}^{2} + 12y + 4[/tex]
e)
[tex] {(x + 2y)}^{2} = {x}^{2} + 4xy + 4 {y}^{2} [/tex]
Sper ca te-am ajutat!