kyraanne30 kyraanne30
  • 01-10-2020
  • Mathematics
contestada

Solve the simultaneous equations y= 2x
y=x^2-4x+8

Respuesta :

Ukmmmmm
Ukmmmmm Ukmmmmm
  • 01-10-2020

Answer:

x =  4

Step-by-step explanation:

y = 2x , y = x^2 -4x +8

=> 2x = x^2 - 4x + 8

6x - x^2 - 8 = 0

(-x^2 + 2.3x - 3^2 ) -1 = 0

( -x-3)^2 - 1= 0

(-x-3)^2 = -1

(-x-3)^2 = (-1)^2

-x - 3 = 1

x =  4

Answer Link

Otras preguntas

Which question should readers ask before reading the "More than Flavorful" section?
Why are sepals and petals referred to as "accessory parts" (of the plant)?
Which of the following would most likely be a cause of primary succession?
The time it takes for an object stopped from a certain speed can be modeled by the equation t=1/2 square root v, where v is the speed of object in meters per se
What is a city that governs itself and its surrounding territory?
Harry needs to paint a cereal box for a school project. What measure should he use to find the total amount of paint he needs to cover the cereal box with paint
as a result of the gold foil experiment it was concluded that an atom (1) contains protons, neutrons, and electrons(2)contains a small, dense nucleus(3)has posi
If a cd player costs 49.95 what will your total be if you have to pay a 5% tax
A roller coaster track is 3,000 meters long. It takes 100 seconds to travel once around the roller coaster. What is the average speedof the roller coaster? Is t
A good way to reduce stress is to