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

Rewrite the following linear equation in slope-intercept form. Write your answer with no spaces. y+2=4(x-3)
type the requested verb form of this verb. future progressive tense: soar
Which decimal is equivalent to 3/8?
Rewrite the following linear equation in slope-intercept form. Write your answer with no spaces. y+2=4(x-3)
How long does water evaporation take? What factors influence it?
Indicate which pattern of evolution is shown by the many species of finches on the Galápagos Islands.
When 70,000 is written as 7.0 10^{n} what is the value of n ? Can you please explain with some details?
Michelle has $12.30 in her purse in 1 cent 5 cent and 25 cent coins. if she has an equal number of each coin type how many coins does Michelle have in her purse
solve the proportion2x + 1/x + 1 = 14/3x-1
How many months is 0.75 of a year