Determine the intervals where the function 
is decreasing.
Definitions:
Bonus
An additional amount of money given as a reward or compensation on top of what is normally due, often based on performance.
Freedom of Speech
The right to express any opinions without censorship or restraint by the government, a fundamental part of democratic societies.
Oliver Wendell Holmes
An influential American Supreme Court Justice known for his wit and legal wisdom, serving from 1902 to 1932.
Louis Brandeis
An American lawyer and Associate Justice on the Supreme Court of the United States (1916–1939), known for his advocacy of privacy, free speech, and limiting the power of large corporations.
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