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

What are four main types of animal tissues. AConnective BMuscular CEpidermal DEpithelial ESupport FNervous
How does acetylcholine influence chemical and physical digestion? Chemical—triggers release of pancreatic enzyme; Physical—triggers stomach muscle contraction
What happens if the membrane is not permeable to the solute?
Describe the main properties of a gas. check all that apply
1. (x + 1)(x – 5) = 0 a. x = 1 or x = -5 b. x = -4 or x = -5 c. x = 1 or x = -4 d. x = -1 or x = 5
Assume that in 2015, the first edition of a comic book was sold at auction for $1,905,000. the comic book was originally sold in 1941 for $.07. for this to have
Which pattern of group relations (from the unit) do you think the Chinese-American food represents?
Conflict between which two groups led to the creation of Pakistan and Bangledesh?
what are the main ways in which animal cells are able to communicate with each other?
A cup contains 3 blue paper clips,2 red paper clips,and 5 silver paper clips.what is the probability of not drawing a red paper clip