Arzeebo Arzeebo

01-02-2016
Mathematics

contestada

x+ 1/x =5 what is the value x²+1/x²?

Respuesta :

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

Otras preguntas

Any student who misspelled any word on____ paper was given an F. •his •their

The police have to try to catch the men _______ drive dangerously

Which button is not present in the font group Home tab? -B -U -I -D

Drag each label to the correct location. Sort the pictures based on the type of life cycle they have.

here is the next tricky math problem. Help me. 2y^3-4x^2-4-1+3x^2-3y^3-y^3

Pls help ASAP will mark brainlest

Dani is ordering lumber for her new patio. The Long Barn charges a $45.96 delivery. They also charge $1.95 per board. Dani gets lumber and has it delivered to h

Who's your favorite celebrity why do you like them what's their life story? (DON'T HAVE A FAVORITE)

3. Which is true about the relationship between an object's mass and its weight? (1 Point) A. An object's weight and its mass are independent of each other. B.

1) what is a pointing device?2) what is a trackpoint what is the difference between soft copy output and hardcopy output? 3) what is the printer? what is the di