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OpenStudy (anonymous):
radical x + radical 2x =1
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OpenStudy (anonymous):
\[=\sqrt{x}+\sqrt{2x}=1\]
OpenStudy (anonymous):
\[\sqrt{x}*(1+\sqrt{2})=1\]
OpenStudy (anonymous):
\[\sqrt{x}=1/(1+\sqrt{2})\] square both side - you get answer for x
OpenStudy (anonymous):
\[x=1/(1+\sqrt{2})^{2}\]
OpenStudy (anonymous):
so you can't combine \[\sqrt{x}\] and \[\sqrt{2x}\]
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