EasyMath· Advanced Math· Nonlinear equations in one variable and systems of equations in two variables· MCQ
If , which of the following is a possible value of x ?
A
1
B
C
D
Correct answer: D
Explanation
Choice D is correct. If , then taking the square root of each side of the equation gives or . Solving these equations for x gives or . Of these, is the only solution given as a choice.
Choice A is incorrect and may result from solving the equation and making a sign error. Choice B is incorrect and may result from solving the equation . Choice C is incorrect and may result from finding a possible value of .
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id cb_question_bank:f79ab154-b059-4237-a90c-6a7c9c781530 · question 4236c5a3 · IBN 022943-DC
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