A Piecewise Positivity Condition

Problem

Let f(x)=xxa2a2f(x) = x|x - a| - 2a^2. If f(x)>0f(x) > 0 for all x>2x > 2, find the range of possible values of aa.

Answer

Solution

Difficulty6/10
Topicsfunctions, Absolute Value, algebra, inequality, Casework

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