SOLUTION: please help me simplify this! 5 square root 15 times (-2 square rott 3 )

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Question 389930: please help me simplify this!
5 square root 15 times (-2 square rott 3 )
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
(5 square root 15) times (-2 square ro0t 3 )
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(5*sqrt(15))(-2sqrt(3))
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= -10*sqrt(45)
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= -10*sqrt[9*5]
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= -10*3*sqrt(5)
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= -30*sqrt(5)
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Cheers,
Stan H.
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