johnsonjaidyn156 johnsonjaidyn156
  • 22-04-2021
  • Mathematics
contestada

the square of a number decreased by 15 is twice the number. find the number

further explanation please

Respuesta :

MarvelDude MarvelDude
  • 22-04-2021

Answer:

x = 5, -3

Step-by-step explanation:

x² - 15 = 2x

x² - 2x - 15 = 0

(x - 5)(x + 3) = 0

Answer Link

Otras preguntas

(1) Glen’s horse, Tipper, grazes lazily in his grassy.In sentence (1), what part of speech is "lazily"? (A)verb (B)adverb (C)adjective
What is the most current NASA mission on Mars?
show that at least 3 of any 25 days chosen must fall in the same month of the year.please halp!
what is sugar art? could you help me?
1. In a certain county, the number of Charter Schools is eleven less than twice the number of Alternative Schools. There are 35 Charter Schools in the county. W
What are 3 things an Apple, Knife and Mirror have in common?
1. In a certain county, the number of Charter Schools is eleven less than twice the number of Alternative Schools. There are 35 Charter Schools in the county. W
You kick a ball with a speed of 14 m/s at an angle of 51°. How far away does the ball land?
Two numbers add to 251 and the second is 41 bigger then the first. what are the two numbers?
Which of the following is not equivalent to the formula d = rt?