Question

please help, I'm so confused how to-do this

Answer 1

Answer:

Step-by-step explanation:

use the quadratic formula : $x = \frac{ -b \pm \sqrt{b^2 - 4ac}}{2a}$, where ax^2+bx+c=0

$y = \frac{ -(-20) \pm \sqrt{(-20)^2 - 4(1)(50)}}{2(1)}$

$y = \frac{ 20 \pm \sqrt{400 - 200}}{2}$

$y = \frac{ 20 \pm \sqrt{200}}{2}$

y = 17.07106~ or 2.928932~