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

President Theodore Roosevelt’s commitment to the proverb, “Speak softly and carry a big stick; you will go far,” was most clearly shown when he (1) opposed cons
can someone please explain expanded form with this number 15,409
In may, Jim lunch account has a balance of $58.19. If lunch costs $2.74 per day, how many days will Jim be able to buy lunch before his account runs out of mone
Which statement is true? a. Slavery never ended in the United States. b. Slavery in the United States ended in 1776. c. Slavery ended in the United States af
what does all flexible objects have in common
fifteen seconds is what fraction of a minute
949 rounded to the nearest ten
Ten times the sum of half a number and 6 is 8
What is a quicklist
Long division of 764 divided by 4, must show work