Im really not sure if this is calculus and I know this is really simple but this is the one thing that has always confused me so help me out... x^2+40x-40=0 what is x? haha thanks
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Originally Posted by Gman8990 Im really not sure if this is calculus and I know this is really simple but this is the one thing that has always confused me so help me out... x^2+40x-40=0 what is x? haha thanks It can be written as ....
Originally Posted by Gman8990 Im really not sure if this is calculus and I know this is really simple but this is the one thing that has always confused me so help me out... x^2+40x-40=0 what is x? haha thanks Since you titled this "Quadratic Formula Help", do you know what the quadratic formula is? If then Here a= 1, b= 40 and c= -40. Of course, mr. fantastic's completing the square works nicely too.
Last edited by mr fantastic; March 26th 2010 at 02:00 PM. Reason: Fixed latex - you missed a } in the fraction (;
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