Question

y²-9 дробь y³ умножить y дробь 3+y

Answer 1

$\frac{y^2-9}{y^3}* \frac{y}{3+y}= \frac{(y+3)(y-3)*y}{y^3(y+3)}= \frac{y-3}{y^2}$

Answer 2

$\frac{(y - 3)(y + 3)}{ {y}^{3} } \times \frac{y}{3 + y} = \frac{y - 3}{ {y}^{2} }$