bayleigh27 bayleigh27
  • 22-04-2021
  • Mathematics
contestada

Use the quadratic formula to solve the equation.
2x2 + 2x - 4= 0

Respuesta :

carrerasgomezandre carrerasgomezandre
  • 22-04-2021

Answer:

x = 1 or -2

Step-by-step explanation:

x = (-b +- √b^2 - 4ac)/2a

x = (-2 +- √4 + 32)/4

x = (-2 +- √36)/4

x = (-2 +- 6)/4

We will add for the first solution

x = ( -2 + 6)/4 -> x = 4/4 -> x = 1

And now we subtract for the second solution

x = (-2 - 6)/4 -> x = -8/4 -> x = -2

There are your answers. Hope I helped!

Answer Link

Otras preguntas

What is the quotient of 9.18 divided by –3.4? –2.7–0.270.272.7
Which of the following topics is the most focused? scarab beetles beetles bugs
1. Why is Elie sent to the dentist?
You're about to start a new physical fitness program in order to strive for better health. Which is the first step you should take? Rest your body for two weeks
Rayray Records' stock currently sells for $105.00 per share. The dividend is projected to increase at a constant rate of 5.00% per year. The required rate of re
Why do simple molecules like carbon and hydrogen play such a vital role in the human body?
HELP PLZ!!! Which of the following os the correct equation for this function?
A physical education teacher wanted to test whether her county’s students are falling below the national proportion. It is known that the national proportion fo
Select the correct answer.in the sameHuman blood consists of blood groups A, B, and O. However, there is one more blood group, An, which contains alles andgenot
1/4 as a demical rounded to 1 significant figure