Question

Помогите срочно!пажалуйста!1!!даю 10баллов!

Answer 1

$\frac{100t^2}{100t^2-25}-\frac{100t}{(10t-5)(10t+5)}+ \frac{25}{100t^2-25}=$

$=\frac{100t^2}{100t^2-25}-\frac{100t}{100t^2-25}+ \frac{25}{100t^2-25}=$

$=\frac{100t^2-100t+25}{100t^2-25}=$

$=\frac{(10t-5)^2}{(10t-5)(10t+5)}=\frac{10t-5}{10t+5}$

Ответ:  $\frac{10t-5}{10t+5}$