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Advanced Math
/ Nonlinear equations in one variable and systems of equations in two variables
Difficulty: Easy
Which of the following values of x satisfies the given equation?
1
2
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148
Explanation
Choice A is correct. Solving for x by taking the square root of both sides of the given equation yields 
or 
. Of the choices given, 
satisfies the given equation.
Choice B is incorrect and may result from a calculation error when solving for x. Choice C is incorrect and may result from dividing 64 by 2 instead of taking the square root. Choice D is incorrect and may result from multiplying 64 by 2 instead of taking the square root.