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

Please I really need help!equivalent fraction of 1/50 with a denominator of 100 and convert these fractions to decimals. Also these ones: 1/20 1/25 3/10 7/10 2/
Can someone help solve, 3y+6=30-7y
A basketball rolls of a 0.70 m high desk and strikes the floor 0.25 m away from the base of the desk? How fast was the ball rolling?
why are quebec and ontario known as canadas economic heart
A basketball rolls of a 0.70 m high desk and strikes the floor 0.25 m away from the base of the desk? How fast was the ball rolling?
If you know two points on a line, how can you find the rate of change of the variables being graphed?
how did the experience of the early colonists shape Americas political and social ideals?
what is 8-4/5f>-14-2f
The crew on fishing boat caught four fish weighing a total of 1092 pounds. The tarpon weighed twice as much as the amberjack and the white marlin weighed twice
why do you use cubic units and not square units to find the volume of solid figures?