bearninja
bearninja bearninja
  • 02-09-2016
  • Mathematics
contestada

What do you times together to get -20 and add together to get 24??

Respuesta :

nobillionaireNobley
nobillionaireNobley nobillionaireNobley
  • 04-09-2016
Let the two numbers be x and y
xy = -20 . . . . . (1)
x + y = 24 . . . . .(2)
From (2), x = 24 - y . . . . . (3)
Putting (3) into (1), we have:
(24 - y)y = -20
24y - y^2 = -20
y^2 - 24y - 20 = 0
y = 12 + 2√41 and x = 12 - 2√41
Answer Link

Otras preguntas

the perimeter of a triangular plot of land is 2400 ft. the longest feet is 200 ft less than twice the shortest. the middle side is 200 ft less than the longest
Sylvanite is a mineral that contains 28.0% gold by mass. How much sylvanite would you need to dig up to obtain 63.0 grams of gold?
why did the romans reject the etruscan monarchy and establish a republic
what does a verb phrase contain?
What is the relationship between atoms,electrons, neutrons, and protons?
identify the connective tissue that works like a lever, allowing a muscle to contract and pull on a bone in a way that makes the bone move. a) periosteum b) ten
How did the Civil War affect women? A)It required them to take military training classes to prepare them for battle. B)It forced them to stay within the home t
How many tens are in 14.5
Which of the following is not a category that can be used to interpret a text? A. ethical B. sociological/historical C. informal D. biographic/psychological
select the sentence that properly corrects the error below: they practiced often, the show was great.