document.write( "Question 256858: OK I have a problem: I have the right answer and I've even had it double checked by my teacher I'm just not sure how I got there.
\n" ); document.write( "The problem is: 2√5+3√20 And I know the right answer is:8√5.
\n" ); document.write( "I just can't remember I got from one to the other. \n" ); document.write( "
Algebra.Com's Answer #188892 by CharlesG2(834)\"\" \"About 
You can put this solution on YOUR website!
\" OK I have a problem: I have the right answer and I've even had it double checked by my teacher I'm just not sure how I got there.
\n" ); document.write( "The problem is: 2√5+3√20 And I know the right answer is:8√5.
\n" ); document.write( "I just can't remember I got from one to the other. \"\r
\n" ); document.write( "\n" ); document.write( "Let me see if I can help.\r
\n" ); document.write( "\n" ); document.write( "2*sqrt(5) + 3sqrt(20)
\n" ); document.write( "2*sqrt(5) + 3sqrt(4*5) --> you can take the 4 out from under the radical since it is the square of 2
\n" ); document.write( "2*sqrt(5) + 3*2*sqrt(5)
\n" ); document.write( "2*sqrt(5) + 6*sqrt(5)
\n" ); document.write( "8*sqrt(5) --> the answer\r
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