radomes.openskiesproject.org
Arzeebo
Arzeebo Arzeebo
  • 01-02-2016
  • Mathematics
Answered

x+ 1/x =5 what is the value x²+1/x²?

Verified Answer :

Billymkhoi
Billymkhoi Billymkhoi
  • 01-02-2016

x+ 1/x= 5
⇒ (x+ 1/x)^2= 5^2
⇒ (x+ 1/x)^2= 25
⇒ x^2+ 2(x)(1/x)+ 1/x^2= 25
⇒ (x^2+ 1/x^2)+ 2*1= 25
⇒ x^2+ 1/x^2= 25 -2
⇒ x^2+ 1/x^2= 23

The final answer is 23~

Answer Link

Related Questions

how did solon contribute to the development of democracy in athens
A Boston subway train traveling at constant speed traveled 101 miles in half an hour What was the speed of the subway train
divide 56 in a ratio of 43 show how you done it please
Simplify. $\sqrt{125}$
In individual having a history of migraine headaches would most likely be diagnosed with
20 points What role did J Edgar Hoover play in the Palmer Raids He arrested Mitchell Palmer for civil liberty violations He served as the attorney for those arr
What do you think Powhatan meant by you must consequently famish by wrongdoing your friends
need help unscrambling a spanish sentence clases esta tienes qué tarde
Draw a number line from 2 to 2 Put tick marks every onetenth unit Graph a point with the given coordinate point Q coordinate 11 Which is true about point Q on t
which of theep following might be contained in stage directions