SOLUTION: square root of 72x^2 y^3 please help, im stuck. thank you.

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Question 222738: square root of 72x^2 y^3
please help, im stuck.
thank you.

Found 2 solutions by stanbon, jim_thompson5910:
Answer by stanbon(75887)   (Show Source): You can put this solution on YOUR website!
square root of 72x^2 y^3
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= sqrt(36x^2y^2)*sqrt(2y)
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= 6xy*sqrt(2y)
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Cheers,
Stan H.

Answer by jim_thompson5910(35256)   (Show Source): You can put this solution on YOUR website!

Start with the given expression.


Factor into


Factor into


Break up the square root using the identity .


Take the square root of to get .


Take the square root of to get .


Take the square root of to get .


Rearrange and multiply the terms.

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Answer:


So simplifies to


In other words, where every variable is non-negative.

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