Question

Помогите СРОЧЬНО!!!!!!!

Answer 1

$\displaystyle\bf\\1)\\\\\frac{y^{2}-y }{y^{2} } =\frac{y\cdot(y-1)}{y^{2} } =\frac{y-1}{y} \\\\\\2)\\\\\frac{x^{2}+3 x}{x^{2} -9}=\frac{x\cdot(x+3)}{(x+3)\cdot(x-3)}=\frac{x}{x-3}$