Question

Adding Radical: Problem posted in Comments. :)

Answer 1

\[-3\sqrt{12}+3\sqrt{3}+3\sqrt{20}\]

Answer 2

If I remember correctly I believe it goes like this; the 12, the 3, and the 20 have to have the same number
-30V 120 + 120V 120 + 18V 120

Answer 3

So now we put 108V 120 into lowest terms

Answer 4

divided by 4 we get 27V 30, divided by 3 we get 9V 10

Answer 5

The answer key says this
\[-3\sqrt{3}+6\sqrt{5}\]
I got the \[6\sqrt{5}\] but im not understanding how they got the -3\sqrt{3}

Answer 6

Me neither @jpes2193

Answer 7

lol math......

Answer 8

\[-3\sqrt{4}*\sqrt{3}+3\sqrt{3}+3\sqrt{4}*\sqrt{5}\] (This is where you have to break up the radican to simplify the radical.)
\[-6\sqrt{3}+3\sqrt{3}+6\sqrt{5}\] (Then in this step you can combine like terms)
\[-3\sqrt{3}+6\sqrt{5}\] (since you can't combine anything else this is your answer)

Answer 9

@LunyMoony

Answer 10

Sorry, am I so authorize this? @jpes2193

Answer 11

huh??

Answer 12

Sorry, what was your first question? :D @jpes2193

Answer 13

I just figured you would want to know how to solve this is all.. since you were helping me but we got confused.

Answer 14

Oh, my bad, thank you very much! @jpes2193