Question

$\frac{2x - 6y}{0.25x {}^{2} - 2.25y {}^{2} } =$
Ребят, помогите пж..... Буду очень благодарна....

Answer 1

$\displaystyle\tt\frac{2x-6y}{0.25x^2-2.25y^2}=\frac{2(x-3y)}{0.25(x^2-9y^2)}= \frac{8(x-3y)}{(x-3y)(x+3y)}= \frac{8}{x+3y}$