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OpenStudy (anonymous):
Simplify: \[\sqrt{c}(3+2\sqrt{5})\]
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OpenStudy (anonymous):
foil
OpenStudy (anonymous):
multiply by \[\sqrt{c}\]
OpenStudy (anonymous):
So far I have \[3\sqrt{c}\times \sqrt{5c}\] is that right?
OpenStudy (anonymous):
I don't know what to do next though.
OpenStudy (anonymous):
oops forgot the two in front of sqrt(5c)
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OpenStudy (anonymous):
yes fixing the 2 does it,it will be correct
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