Elementary Algebra
#Math
Topics
$\displaystyle ax^{2}+bx+c=0$
- $\displaystyle x=\frac{-b\pm\sqrt{ b^{2}-4ac }}{2a}$
- $\displaystyle a=1\rightarrow x=m\pm\sqrt{ m^{2} -p},,m=-\frac{b}{2},,p=c$
- $\displaystyle m$ is the mean of the roots
- $\displaystyle p$ is the product of the roots