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

In the reaction Mg (s) + 2HCl (aq) -> H2 (g) + MgCl2 (aq), how many grams of hydrogen gas will be produced from 300 milliliters of a 4 M HCl in an excess of
Early humans most likely experienced which of the following changes in climate and environment? Select all that apply
The United States can best be described as a A. totalitarian dictatorship. B. direct democracy. C. representative democracy. D. representative parliamentary
You are purchasing soft drinks for the company annual party. You expect about 32 people to be there. You want to allow at least 18 ounces per person. Store A of
Choose the answer that best describes what kind of substance shampoo is. heterogeneous mixture or homogeneous mixture
A fluttering white flag appeared in the distance. Identify the word in bold.
Is a scalene triangle a regular polygon
The following question refers to The Diary of Anne Frank, Act 1. Anne’s Hanukkah gift to Peter acknowledges that __________ Anne does not know much about Peter.
Why are ziggurat and polytheism linked ?
which events are not independent? a. you toss three coins and get and one tail b. You choose three different ice toppings for a sundae. c. You draw two colored