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QUESTION
What is the square root of 90?
√90 = √(9 ∙10) = 3√10
90 has the square factor 9. And the square root of 9 times 10 is equal to the square root of 9 times the square root of 10
The square root of 90 equals 3 times the square root of 10 √90 = 3√10
http://www.themathpage.com/alg/simplify-radicals.htm
