Question

3{-1-12[15-2(8/3+1/9) elevado a 1/2-1]+5},por favor solicito quem saiba me ajude.

Answer 1

3{-1-12[15-2(8/3+1/9)^1/2 -1]+5} = 
3{-1-12[15-2(25/9)^1/2 -1]+5} = 
3{-1-12[15-2(√25/9)-1]+5} = 
3{-1-12[15-2*(5/3)-1]+5} = 
3{-1-12[15-(10/3)-1]+5} =
3{-1-12[32/3]+5} = 
3{-13*[32/3]+5} = 
3{[-416/3]+5} = 
3{-401/3} = 
-1203/3 ] 
-401.