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okay so i needed to simplify:

\((c + c\sqrt{c})(c + 7\sqrt{3c})\)

i used distributive property yada yada and got:

\(c^2 + 7c\sqrt{3c} + c^2\sqrt{c} + 7c\sqrt{3c^2} \)

in the textbook, the last part is actually \(7c^2 \sqrt{3}\)

how did they get this answer?

Guest Oct 2, 2017

Best Answer 

 #1
avatar+4806 
+1

You almost have it!

 

\(7c\sqrt{3c^2}\,=\,7c\sqrt3\sqrt{c^2} \,=\,7c\sqrt3\,*\,c \,=\,7c^2\sqrt3\)          smiley

hectictar  Oct 2, 2017
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 #1
avatar+4806 
+1
Best Answer

You almost have it!

 

\(7c\sqrt{3c^2}\,=\,7c\sqrt3\sqrt{c^2} \,=\,7c\sqrt3\,*\,c \,=\,7c^2\sqrt3\)          smiley

hectictar  Oct 2, 2017

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