i need to find out the equation, the roots are given: -1+2√2 and -1-2√2 2 2 pls help
Follow Math Help Forum on Facebook and Google+
Originally Posted by Ilsa i need to find out the equation, the roots are given: -1+2√2 and -1-2√2 2 2 pls help
Last edited by e^(i*pi); Sep 26th 2009 at 05:58 AM.
you can also use this formula x^2 - (sum of roots) x + (product of roots ) = 0
x^2 + x + C = 0 x = [-1 +- sqrt(1 - 4C)] / 2 Get my drift?
i am using the formula bu can't get the equation, pls help by giving complete steps ~ thankyou.
Originally Posted by Ilsa i am using the formula bu can't get the equation Where are you stuck in the multiplication process? Please be complete. Thank you!
therefore ,the equation is
Last edited by ramiee2010; Sep 28th 2009 at 08:38 AM. Reason: print solution using latex
View Tag Cloud