Since you get 2 solution in quadratic equations 1 may be obviously wrong. For example, if you were trying to find the number of books, -8 would obviously be wrong because you cann ot have -8 books.
It’s called an extraneous or spurious solution. See here:
http://www.mathwords.com/e/extraneous_solution.htm
Good luck in your studies,
~ Mitch ~
March 2nd, 2010 at 9:37 am
N/A. non applicable. And then state your reason
References :
March 2nd, 2010 at 10:20 am
It’s called an extraneous or spurious solution. See here:
http://www.mathwords.com/e/extraneous_solution.htm
Good luck in your studies,
~ Mitch ~
References :