February 2019 0 21 Report
|x^2-4| + |x^2-5| = 1
|x^2-2| = |x^2-9| + 7
|x^2-1| + |x+1| = 0
|x^2-1| = |x-1|
|-x^2+x-1| = |2x-3-x^2|
|x^2+2x| - |2-x| = |x^2-x|

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