SOLUTION: Help solving theses problems: 1.Simplify √256x^2 2.Simplify √18x^4y^3 3. Simplify -4√32xy 4.Multiply and simplify 3√10(4+2&#873

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Question 309877: Help solving theses problems:
1.Simplify √256x^2




2.Simplify √18x^4y^3


3. Simplify -4√32xy


4.Multiply and simplify 3√10(4+2√2)
5.Evaluate. Type the numerical answer.
256^1/4

6. Evaluate. Type the numerical answer.
8^4/3
7.Write an equivalent expression using radical notation and, if possible, simplify.
(9y8)^3/2
8.Use rational exponents to simplify 6√x^30

Answer by jim_thompson5910(35256)   (Show Source): You can put this solution on YOUR website!
I'll do the first one to get you started.



Start with the given expression.


Break up the square root using the identity .


Take the square root of to get .


Take the square root of to get .

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Answer:


So simplifies to


In other words, where

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