Amberheahlke Amberheahlke

25-04-2017
Mathematics

contestada

solve the system equations
y=x^2-8 4x+y=-8

Respuesta :

mohabbasem mohabbasem

25-04-2017

insert y in the second equation and solve for x:

4x+(x^2-8)=-8
4x+x^2-8=-8
4x+x^2=0
x^2+4x=0

x = -4

Now you insers this x-value in the first or second equation (i use the first):
y=(-4)^2-8=16-8=8

Therefore the conclusion must be x=-4 and y=8

Answer Link

Otras preguntas

I need help with this one problem please.

What is crowbar? Class 8

What is the Color of trioxonitrate(v)

WHOS THE CEO OF TESLA

HELPPPPPPPP PLEASE ANSWERE NOWWWWW ILL GIVE BRAINLYISTT Classify $ π 2. Select all that apply. (Select all that apply.) Whole Number Integer Irrational Number

Prompt: answer using complete sentences What makes people believe in the supernatural?

whats the square root of 9/49. Please help il mark you as brainlist

Will give brainiest to first answer short summary of the Early middle ages

Which of the following behaviors are generally considered to be professional? Check all of the boxes that apply. exhibiting respect for people, both personally

80words on a story about Corona virus