SOLUTION: (radical)45 + (radical) 80

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Question 184960This question is from textbook Algebra 1
: (radical)45 + (radical) 80 This question is from textbook Algebra 1

Answer by jim_thompson5910(35256)   (Show Source): You can put this solution on YOUR website!
Start with the given expression


Factor 45 into 9*5 and factor 80 into 16*5. Note: each factorization has a perfect square factor.


Break up the square root.


Take the square root of 9 to get 3. Take the square root of 16 to get 4


Factor out the GCF


Combine like terms


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Answer:

So

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