Question

(-2)³-(-1)²+ 5^{-2}

Answer 1

(-2)³ = -8 
(-1)² = 1 
5^(-2) =   1/25 

-8 - 1 + 1/25 =    -200 - 25 +1 / 25   = - 224/25 

Answer 2

(-2)³-(-1)²+5^{-2}

- 8 -1 + 1/25

-8/1 - 1/1 + 1/25

-200 - 25 +1
-----------------
         25

-224/25