I cant seem to find the right answer for this one, can anyone help me evaluate this problem please

Answer:
substitute the values of a b and c on the expression and write the answer.
Answer:
((-3×4)-(4×2))^3 (-12+8)^3 (-4)^3 -54
__________ = ________ = ________= ______= -1.8
(2×3)-1 6-1 5 5