Find the second derivative of the function. 
Definitions:
Quantitatively
Pertaining to the measurement or quantification of something using numbers or quantities.
Intelligence
The ability to learn from experience, solve problems, and adapt to new situations.
Piagetian
Relating to the developmental theories of Jean Piaget, focusing on how children's cognition develops in stages.
Operant Conditioning
A method of learning that occurs through rewards and punishments for behavior, influencing the probability of that behavior being repeated.
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