Greetings!
"How to solve [tex](-2)^2-(-8)*[(-2)-(-10)][/tex]"...
Follow PEDMAS:
[tex](-2)^2-(-8)*[(-2)-(-10)][/tex]
[tex]=(-2)^2-(-8)*[(-2)+(10)][/tex]
[tex]=(-2)^2-(-8)*(8)[/tex]
[tex]=4-(-8)*(8)[/tex]
[tex]=4-(-64)[/tex]
[tex]=4+64[/tex]
[tex]=68[/tex]
The answer would be 68.
Hope this helps.
-Benjamin
