Question 219417
These answers are not really what usually comes out of the quadratic formula.  You may have left something out.  Do you mean {{{(10+-sqrt(84))/4}}}???


If that is what you mean, then it would be 


{{{(10+-sqrt(4)*sqrt(21))/4}}}
{{{(10 +- 2sqrt(21))/4}}}
{{{(2(5+-sqrt(21)))/4}}}
{{{(5+-sqrt(21))/2}}}


This is a longshot!  I'm not sure what your problem was to begin with.  If I did not understand correctly, why don't you re-post the problem, or send me an Email if you can wait until later today to get your problem solved.


R^2


Dr. Robert J. Rapalje