Question

Срочноооо
Даю 15-30баллов

Answer 1

$\frac{ 37^{2} - 23^{2} }{ 47^{2} -169} = \frac{(37-23)(37+23)}{ 47^{2}- 13^{2} }= \frac{14*60}{(47-13)(47+13)}= \frac{14*60}{34*60}= \frac{14}{34}= \frac{7}{17}$