Question

-5-[(5)²-(-2-3).5]/10

Answer 1

-5-[(5)sobre2 -(-2-3).5]/10
-5-[25-5.5]/10
-5-[25-25]/10
-5-0/10
-5/10
-2

Answer 2

$-5-\dfrac{\left[(5)^2-(-2-3) \times 5\right]}{10}\\\\ =-5-\dfrac{\left[25-(-5) \times 5\right]}{10}\\\\ =-5-\dfrac{\left[25-(-25)\right]}{10}\\\\ =-5-\dfrac{\left[25+25\right]}{10}\\\\ =-5-\dfrac{50}{10}\\\\ =-5-5\\\\ \boxed{=-10}$

Espero ter ajudado.
Bons estudos!