SOLUTION: |x^2-4x|<0

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Question 876832: |x^2-4x|<0
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
The expression can be non-negative or negative. Solve both cases.


x%5E2-4x%3E=0 means abs%28x%5E2-4x%29=x%5E2-4x.
x%5E2-4x%3C0
What happens?


x%5E2-4x%3C0 means abs%28x%5E2-4x%29=-%28x%5E2-4x%29=4x-x%5E2.
4x-x%5E2%3C0
What happens?