Question

x la 2 + 2x +1=
va rogggg​

Answer 1

x² + 2x + 1 = x² + 2 × x × x + 1² = (x + 1)²

Answer 2

Răspuns:

$x {}^{2} + 2x + 1 \\ = x {}^{2} + 2 \times x \times 1 + 1 \\ = x {}^{2} + 2 \times x \times 1 + 1 {}^{2} \\ = \bf\pink{\boxed{(x + 1) {}^{2} }}$