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

The most Stanley can afford to pay per year in mortgage payments is $12,000, and his credit score is currently 544. According to the following table for a $150,
what is your when x = 60? ​
What is the missing side length in the triangle below?
A bag of marbles contains 4 red marbles and 4 green marbles. Each red marble was labeled with a different number, 1 through 4, and each green marble was labeled
What most defines a community in the digital age?
I need help with a science problem!
The diameter of a circle is 2 meters. What is the circles circumftance
I need help PLZZZ!!! Subtract -5-(-6)=
It is recommended that children eat foods high in calcium and iron as a way to reduce the accumulation of lead in their cells and enzymes. Explain why this is a
1. The period of Decolonization after World War II is characterized by A) European leaders allowing Hitler to do whatever he wanted. B) European colonies throu