ajwheeler01 ajwheeler01

25-07-2018
Mathematics

contestada

Solve the equation. Identify any extraneous solutions.

w=sqrt 7w

Respuesta :

29-07-2018

[tex]The\ domain:\\D:w\geq0\\\\w=\sqrt{7w}\ \ \ |^2\\\\w^2=7w\ \ \ \ |-7w\\\\w^2-7w=0\\\\w(w-7)=0\iff w=0\ \vee\ w-7=0\ \ \ |+7\\\\w=0\in D\ \vee\ w=7\in D[/tex]

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