SOLUTION: Square Addition: -3 sqrt80-sqrt20

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Question 322261: Square Addition:
-3 sqrt80-sqrt20

Answer by mananth(16946) About Me  (Show Source):
You can put this solution on YOUR website!
-3 sqrt80-sqrt20
-3sqrt2*2*2*2*5-sqrt2*2*5
-3*2*2sqrt5-2sqrt5
sqrt5(-12-2)
=-14sqrt5