Apply the quadratic formula by substituting values from a quadratic equation.
[i]Answer these open ended questions on your own or with others to form deeper math connections.[/i]
Jordan would like to use the quadratic formula to solve this equation: [math]x^2=11x+8[/math][br]What value should they use to substitute for [math]a[/math], [math]b[/math], and [math]c[/math]?
Jae is solving a quadratic equation and applies the quadratic formula to achieve this step:[br][math]x=\frac{-\left(4\right)\pm\sqrt{\left(4\right)^2-4\left(1\right)\left(-5\right)}}{2\left(1\right)}[/math][br]What equation could he be solving?
How can the quadratic formula help find how many solutions a quadratic equation has?