Answer:
x<3
Step-by-step explanation:
subtract 4 from both sides
1/3(3x-6)^3+4-4<13-4
simplify
1/3(3x-6)^3<9X3
multiply both sides by 3
3X1/3(3x-6)^3<9X3
(3x-6)3<27
for u^n < a, if n is odd then u <n/a
3x-6<3 square 27 : x<3
