Attachment 3275
Is it correct to use the quadratic formula for this derivative of this? I am not getting the right answer of 2+- 2sqroot3
Help would be much appreciated.
Attachment 3275
Is it correct to use the quadratic formula for this derivative of this? I am not getting the right answer of 2+- 2sqroot3
Help would be much appreciated.
Make sure you get the right signs for $\displaystyle a$, $\displaystyle b$ and $\displaystyle c$. This should give:
$\displaystyle x=\frac{-12\pm\sqrt{144+(4)(3)(12)}}{-6}$
$\displaystyle x=2\pm2\sqrt{2}$