It is: 2 times the square root of 21 and it's an irrational number
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the 4th root of 49 is the square root of the square root of 49 since square root 49 =7 then simplify is square root of 7
The square root of 7056 is 84.
The square root of 75 is ~8.66
84
factor the perfect square simplify the perfect root factor out the perfect cube simplify the perfect root √32 = √16 = √8◦2 = 4√2 move 8 out and simplify it to a perfect square