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Square and Squared roots

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by VP_RedSoxFan » Wed May 21, 2008 7:09 am
Funny username, I doubt its true though....


The way to solve this one is to look at each answer choice and see if there is an integer, x, where x^2 equals each and every answer choice--or see if you get an integer when taking the square root.

A. all those roots make the simplified choice = 1 and the square root of that is 1

B. This answer choice is meant to make sure you know that your trying to take a root rather than square or simply simplify. Simplified, its 2 and 2 is not a perfect square

C. 18/2 is 9 and a perfect square. I guess you could try to be taking the roots of 18 and 2 and could be tricky there until you cancel the sqrt(2) from the fraction

D. This is 16 and a perfect square

E. 36 is obviously a perfect square.

Correct answer choice is B

Hope this helps, good luck!
Ryan S.
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