( l 2-x l ^2 ) - 2 l 2-x l = 15(adsbygoogle = window.adsbygoogle || []).push({});

((2-x)^2) = 15 + 2 l 2-x l ------1

((2-x)^2) = -15 - 2 l 2-x l------2

Am I doing correctly?

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# Homework Help: Modulus problem

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