My Math Forum question about square root

 Linear Algebra Linear Algebra Math Forum

 May 18th, 2011, 02:54 PM #1 Newbie   Joined: May 2011 Posts: 1 Thanks: 0 question about square root a, b, c, and d are all composed of linear combination of constants or variables that will be defined by differntial equation then, I have A= -x + sqrt(x^2 - 4ac)/2a B= -A + sqrt(A^2 - 4bd)/2b C= A+B I am trying to express x =............... by C I know I probably can spend a lot of time and expand it, but I am also wondering if there is any easier way to do that. Thank you, CHarles
 May 18th, 2011, 03:26 PM #2 Senior Member   Joined: Jun 2010 Posts: 618 Thanks: 0 Re: question about square root Charles, Just to clarify, since sometimes contributors don't type-set the expressions they mean with complete accuracy, which form do you have in mind $A\=\ \frac{-x+\sqrt{x^2-4ac}}{2a},$ or $A\=\ -x+ \frac{\sqrt{x^2-4ac}}{2a}?$ In either case, I don't see how you can avoid a rather messy expression for x, but maybe someone else will have some penetrating insight... -Ormkärr-

 Tags question, root, square

 Thread Tools Display Modes Linear Mode

 Similar Threads Thread Thread Starter Forum Replies Last Post rain Algebra 6 September 17th, 2012 05:38 PM guru123 Physics 3 May 30th, 2012 09:48 PM candi678 Number Theory 2 January 28th, 2010 03:31 PM mmmboh Calculus 4 October 28th, 2008 06:51 PM jared_4391 Algebra 3 August 8th, 2007 09:06 AM

 Contact - Home - Forums - Cryptocurrency Forum - Top