What is the square root of 70?

1 Answer
Alan P.
Sep 10, 2015

#sqrt(70) ~~ 8.3666# (and #-8.366# if you allow other than the primary root)

Explanation:

Expressed in prime factors
#color(white)("XXX")70 = 2xx5xx7#
therefore it has no squares as factors

The only easy way to evaluate #sqrt(70)# is to use a calculator (or similar technology)

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