keannaspam7 keannaspam7
  • 04-08-2020
  • Mathematics
contestada

Solve the following non-linear system of equations algebraically.
y = - 2x² - 4x + 5 and
y = 2x^2 + 4x + 5

Respuesta :

raskolnikov
raskolnikov raskolnikov
  • 04-08-2020

Answer:

x = -2

Step-by-step explanation:

since y is common in both equations, you can equate them to be equal

-2x² - 4x + 5 = 2x² + 4x + 5

4x² + 8x = 0

factor out 4x

4x(x + 2) = 0

divide both sides by 4x

x + 2 = 0

x = -2

Answer Link

Otras preguntas

15% of what number is 12
What would be the mean if the value 3 was added to the following set? 14, 14, 17, 19, 25 17.8 20.8 18.4 15.3
Determine o valor das seguintes expressões. a) (17º-17'-17") : 4 b) (18º: 8 + 23º: 4 - 8º) . 29
(a) 127.5 is what percent of 51 ?
What can government do to reduce unemployment?
An analysis of an oxide of nitrogen with a molecular weight of 92.02 amu gave 69.57% oxygen and 30.43% nitrogen. What are the empirical and molecular formulas f
What country helped the colonists by giving them supplies, but also sent their navy to help fend off the British and protect port cities?
what is the answer to Jody has a rectangular piece of fabric 7/8 yard long and 4/5 wide. what's the area of the fabric? and Jody shares a piece with her friend
Twice the sum of 4 and x is less than -16
What changes to landforms can ice cause?