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Mathematics 21 Online
OpenStudy (anonymous):

solve the radical expression. expression is in comments.

OpenStudy (anonymous):

\[-3\sqrt{18h^4}\]

OpenStudy (anonymous):

you mean write in simplest radical form? this is not an equation, so you cannot "solve" it, although i guess you can solve the problem

OpenStudy (anonymous):

\[\sqrt{18}=\sqrt{9\times 2}=\sqrt{9}\times \sqrt{2}=3\sqrt{2}\] is a start

OpenStudy (anonymous):

also \[\sqrt{h^4}=\sqrt{h^2}\times \sqrt{h^2}=h\times h=h^2\]

OpenStudy (anonymous):

\[6\sqrt{5h^4}\] is that right?

OpenStudy (anonymous):

no

OpenStudy (anonymous):

there is no 5 in the problem we have \(18=9\times 2\) and so \(\sqrt{18}=3\sqrt{2}\) as i wrote above

OpenStudy (anonymous):

and also \(\sqrt{h^4}=h^2\) so we end up with \[-9h^2\sqrt{2}\]

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