Which is Simpler: |k|=5 or k=±5?

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The discussion centers on the simplicity of expressing equations as |k| = 5 versus k = ±5. The choice depends on context; for graphing functions like f(k) = k^2 - 25, k = ±5 is preferred to indicate two solutions. In contrast, when dealing with physical quantities related to magnitude, |k| = 5 is more appropriate. The relevance of the expression is key to determining which form is simpler. Ultimately, the context dictates the preferred notation.
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Which is "simpler"?---i.e., considered more "simplfied" ?

\left| k \right| = 5 OR k = \pm 5 ?
 
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It's really about relevance. For example if it is a matter of drawing a graph like f(k) = k^2 - 25 and you want to express the fact at the point f(k) = 0 there are two solutions you would probably write k = \pm 5.

However, if it is something physical like and related to magnitude you might want to express it as |k| = 5
 

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