Question

20 pts.
Simplifique a expressão
$\frac{x² + 6x + 9}{x² + 6x + 9}$

Answer 1

Resposta:

x^2+6x+ 9/x^2 + 6x+9

(x+3)^2/(x+3)^2=1

Answer 2

x² + 6x + 9/x² + 6x + 9

x² + 2 (x) (3) + 3²/x² + 2 (x) (3) + 3²

(x + 3)²/x² + 2x × 3 + 3² = 9

(x + 3)²/x² + 6x + 9

(x + 3)²/x² + 2 (x) (3) + 3²

(x + 3)²/ (x + 3)²

r = 1