SOLUTION: Hello, I understand this is a simple concept to some, but I do not understand how to simplify any root, square or cube. The problem is simplify the following root: {{{sqrt( 126 )

Question 950827: Hello,
I understand this is a simple concept to some, but I do not understand how to simplify any root, square or cube.
The problem is simplify the following root: .
Could you please explain how to solve this problem step by step.
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
Factor 126 into 9*14. Notice how 9 is a perfect square.

Break up the root.

Take the square root of 9 to get 3.

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