Question

Va rog , ajutati-ma !
(x+2)²=?

Answer 1

= x la puterea a 2-a + 2x ori 2 + 2 la puterea a doua 
= x la  puterea a 2-a + 4x + 2 la puterea a 2-a

Answer 2

$(x+2)^2=x^2+2*x*2+2^2=\boxed{x^2+4x+4}$