Question

X la patrat +4x+4>sau egal cu 0

Answer 1

sper ca intelegi scrisul

Answer 2

$x^{2} +4x+4 \geq 0$

Folosesti formula (a+b)²=a²+2ab+b² in care a = x si b = 2

Deci x²+2*2*x+2²=(a+b)²

x² + 4x + 4  ≥ 0 =>
(x+2)² ≥ 0 | √ =>
x+2  ≥ 0 =>
x ≥ -2