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Linear and quadratic (Posted on 2007-10-23) Difficulty: 2 of 5
Solve bx + c = 0 for x by means of the quadratic formula.

See The Solution Submitted by Kurious    
Rating: 3.0000 (3 votes)

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re: By limits | Comment 7 of 9 |
(In reply to By limits by Old Original Oskar!)

One nitpick, the extaneous solution does not even conclusively go to infinity. 

Taking the limit from the positive side of 0 gives positive infinity and taking the limit from the negative side of 0 gives negative infinity.  Since the limits on each side do not converge to the same value, the limit does not even exist.

  Posted by Brian Smith on 2007-10-24 01:59:49
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