It is an irrational number.
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The square root of 47 is an irrational number.
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your equation is this...0 = x2 - 2solve for x and you get the square root of 2..your answer is the square root of 2...sqrt(2) = 1.414213562------------------------------------------Actually it is 47. 49 is the perfect square of 7 and two less than that is 47 with 4 being in the tens place.
The square root of 31 falls between the whole numbers 5 and 6.
+sqrt(47) is one possible answer.