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Since 68 is not a perfect square, its square root is irrational.
Sqrt[5*radical(68)] = -6.4211 and +6.4211.
2 times the square root of 17
8.2It is: 8.2 rounded to the tenths place
√(68)√(34•2)√(17•2•2)this is as factorable as it gets, notice however, that we have a pair of primes.so we take that pair and pull it out as a single number:2•√(17)√(68)=2•√(17)