Question

please help... its 7 am and i havent slept all night bc ive been doing hw and i just want to get at least an hour of sleep before i have to get ready for work

Answer 1

Answer:

A

Step-by-step explanation:

$x = \frac{-b \pm \sqrt{b^2 - 4ac}}{2a}$

$x = \frac{-2 \pm \sqrt{2^2 - 4 (-8)}}{2}$

$x = \frac{-2 \pm \sqrt{4 + 32}}{2}$

$x = \frac{-2 \pm \sqrt{36}}{2}$

$x = \frac{-2 \pm 6}{2}$

$\left \{ {{x = \frac{-2 + 6}{2}} \atop {x = \frac{-2 - 6}{2}}} \right.$

$\left \{ {{x = \frac{4}{2}} \atop {x = -\frac{8}{2}}} \right.$

$\left \{ {{x = 2} \atop {x = -4}} \right.$