(4/5)^-2 = (5/4)^2 = 25/16
(1/27)^(1/3) = 1/3
379^0 = 1
Putting it all together:
25/16 - 1/3 + 4*1 = 25/16 - 1/3 + 4 = 2.5625 - 0.3333 + 4 = 6.2282
(4/5)^-2 = (5/4)^2 = 25/16
(1/27)^(1/3) = 1/3
379^0 = 1
Putting it all together:
25/16 - 1/3 + 4*1 = 25/16 - 1/3 + 4 = 2.5625 - 0.3333 + 4 = 6.2282