SOLUTION: subtract simply by collecting like radical terms it possible. 9 sqrt 18 - 6 sqrt 2

SOLUTION: subtract simply by collecting like radical terms it possible. 9 sqrt 18 - 6 sqrt 2

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Question 165005: subtract simply by collecting like radical terms it possible.
9 sqrt 18 - 6 sqrt 2
Answer by nerdybill(7384) (Show Source): You can put this solution on YOUR website!

Factor numbers inside radical to it's prime numbers:

Pull out "pairs" of like numbers:

Factor out sqrt(2):

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