Question

x2-25/x2-6x*x2-36/x2+5x

Answer 1

$\displaystyle\bf\\\frac{x^{2}-25 }{x^{2} -6x} \cdot\frac{x^{2} -36}{x^{2} +5x} =\frac{(x-5)(x+5)}{x(x-6)} \cdot\frac{(x-6)(x+6)}{x(x+5)} =\frac{(x-5)(x+6)}{x^{2} }$