branddemaster
branddemaster branddemaster
  • 24-02-2022
  • Mathematics
contestada

Twice the sum of a number and its reciprocal is 4. Find the number.​

Respuesta :

Аноним Аноним
  • 24-02-2022

Answer:

5 and negative 1?

Step-by-step explanation:

x+(1/x) = 4(x-(1/x)

The rest is just algebra.

x+(1/x) = 4(x-(1/x)

x + 1/x = 4 - 4/x

x + 5/x - 4 = 0

Multiplying both sides, we have:

x^2 - 4x + 5. = 0

Factoring:

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

Two solutions: 5 and -1.

Answer Link
levinsev000
levinsev000 levinsev000
  • 24-02-2022

the answer is 8

Step-by-step explanation:

Answer Link

Otras preguntas

what is the fraction for 105/100
Describe how the development of a special beak shape could affect a bird species’ survival.
Stephen's glass holds 40 milliliters of milf. Farrah's glass holds 2/5 as much milk. How much milk does Farrah's glass hold?
According to cell theory, all cells carry out the functions needed to sustain life. That means all cells must contain A) DNA. B) a nucleus. C) organelles. D) a
why is capitalism called a free-market economy
based on location in the periodic table, what is the formula for beryllium chloride?
According to cell theory, all cells carry out the functions needed to sustain life. That means all cells must contain A) DNA. B) a nucleus. C) organelles. D) a
multiply 4.6 x 2/7 round the answer to the nearest hundredth
Five characteristics of agrarian societies were
Which continent was once joined with Greenland? How do you know?