ffidha ffidha
  • 01-09-2019
  • Mathematics
contestada

How to solve the above simultaneous equation?​

How to solve the above simultaneous equation class=

Respuesta :

MoniMS
MoniMS MoniMS
  • 01-09-2019

Answer:

C -2 or 1

Step-by-step explanation:

So from the equation you have x^2-x-1=-2*x+1

x^2-x-1+2*x-1=0

x^2 +x -2 =0

D= 1^2 -4*(-2)= 1+8=9

x = (-1+-3)/2

So x is either (-1+3)/2=2/2=1

or (-1-3)/2=-2

Answer Link

Otras preguntas

use the order of operations to simplify the following expression
What is the relationship between much of the information contained in an emr and the contents of the a paper medical record?
Find the sum of (c-4)+(3c+9)
What document should you refer to if you have questions regarding the safety or disposal of a chemical? where can this document be located?
simplify 2cos3xsin3x
Alex is painting a house. when alex starts work on monday morning, there are 2452 square feet of surface area that remain to be painted. alex can paint 64 squar
What is the answer of cscx/secx
How do I do number 8?
June is trying to decide between making mozilla firefox or google chrome her primary browser by determining which special features they offer and how easy they
What example does alan weisman give to show that nature has little concern for things that humans find important?