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Mathematics 9 Online
OpenStudy (anonymous):

What is the difference between extraneous and not extraneous? Here is an example... Given the equation Square root of 2x plus 1 = 3, solve for x and identify if it is an extraneous solution. x = 4, solution is extraneous x = 4, solution is not extraneous x = 5, solution is extraneous x = 5, solution is not extraneous I got the answer to be 4, but i don't know if its A or B

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