**How to simplify square roots (review) (article) | Khan …**
https://www.khanacademy.org/math/algebra/x2f8bb11595b61c86:rational-exponents-radicals/x2f8bb11595b61c86:simplifying-square-roots/a/simplifying-square-roots-review

The alternate way is to go into rational exponents so if you have the cube root of the square root of (x-5) =2, you get ( (x-5)^ (1/2))^1/3 = 2, power to power requires multiplication, so (x-5)^1/6 = 2, opposite of 1/6 is 6 in exponent, so (x-5)^ (1/6*6)=2^6, x-5=64, x=69.

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