Question

totul este in poza atasata
Imi trebuie urgent! Mersi!

Answer 1

$\frac{3 {x}^{2} - 6xy - 6xy + 12 {y}^{2} }{(x - 2y)(x + 2y)} = \frac{3x(x - 2y) - 6y(x - 2y)}{(x - 2y)(x + 2y)} = \frac{(x - 2y)(3x - 6y)}{(x - 2y)(x + 2y)} = \frac{3(x - 2y)}{x + 2y}$