raevenmcmurtrie20 raevenmcmurtrie20
  • 25-01-2021
  • Mathematics
contestada

slove system of equations y=2x-3 y=x^2-2x-8

Respuesta :

thebecks
thebecks thebecks
  • 25-01-2021

Answer:

2 solutions:

x=5 and y=7

x=-1 and y=-5

Step-by-step explanation:

y=2x-3

y=x^2-2x-8

y=y   so:

2x-3=x^2-2x-8

simplifying to:

x^2-4x-5=0

factoring to:

(x-5)(x+1)=0

x=5 or x=-1

if x=5 then y=2(5)-3=7

if x=-1 then y=2(-1)-3=-5

Answer Link

Otras preguntas

Statement: All equilateral triangles are congruent by SSS congruence. Is the statement true? Why or why not?
In how many different ways can 4 physics, 2 math and 3 chemistry books be arranged in a row so that all books of the same branch are together?
A definition of formal poetry is verse that A. uses figurative language. B. sticks to certain traditional patterns. C. is written in blank verse.
How would you describe the physical environment of your community?
The ‘oil embargo’ prohibited A.) the manufacture of fuel vehicles B.) imports of foreign oil into Saudi Arabia C.) oil to be sold to countries supporting Israe
Which asian country was divided into spheres of influence?
What type of crime is committed when a hacker steals someones's bank accounts information
the graphh od y=x^2+6x-7 what is the axis of symmetry
In a binomial trail, the probability of success is 0.6 for each trial. Find the probability of each of the following. 51. 9 success in 20 trials 53. 6 failures
What made cesar chavez an effective leader dbq essay?