Find the inflection points, if any, of the following function.Otherwise, answer no solution. 
Definitions:
Idea
A thought or suggestion as to a possible course of action, concept, or mental impression.
Expression
The act of conveying thoughts, feelings, or ideas, particularly in language, art, music, or movement.
Hard Power
The use of military and economic means by a country to influence or coerce others to achieve its national objectives.
Military Force
Refers to the armed forces or military units of a country, which include the army, navy, air force, and other branches responsible for defense and combat operations.
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