nirmalnema
  • nirmalnema
plz help..!!
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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nirmalnema
  • nirmalnema
\[(x+1/x =11 ) then find ( x^2+1/x^2)\]
nirmalnema
  • nirmalnema
@chmvijay
anonymous
  • anonymous
Whatchu mean?

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anonymous
  • anonymous
X+1 divided by x=11???
nirmalnema
  • nirmalnema
x+ (1/x) mentioned in the que..!!
anonymous
  • anonymous
Can you take out the X?
anonymous
  • anonymous
it's X+(1/X)=11 So, In the equation can't you take out the X as common factor?
nirmalnema
  • nirmalnema
@nincompoop
nirmalnema
  • nirmalnema
@Luigi0210
anonymous
  • anonymous
http://www.quickmath.com/webMathematica3/quickmath/equations/solve/basic.jsp#c=solve_stepssolveequation&v1=x%2B(1%2Fx)%3D11&v2=x
anonymous
  • anonymous
idk...
nirmalnema
  • nirmalnema
its ok no problem..thanks for trying..
Luigi0210
  • Luigi0210
I think you need to solve for x in the first one, then once you find that you plug that value into the second..
nirmalnema
  • nirmalnema
yaa but how.
anonymous
  • anonymous
yea.. that's what I was trying to do but that X+(1/X)=11 is weird
anonymous
  • anonymous
It's the same variable so I tried to factor it out but I don't think that's how it works...
Luigi0210
  • Luigi0210
Multiply both sides by x, since it's an equation I think you can do that..
Luigi0210
  • Luigi0210
It'll be \(\Large x^2+1=11x\)
Luigi0210
  • Luigi0210
Nvm seems complicated xD
anonymous
  • anonymous
Why multiply both sides, it'll make X^2 ... that will be one dirty sitaution
anonymous
  • anonymous
the question is not clear to me
nirmalnema
  • nirmalnema
its same as done by @DanielK16 but x is so weird
Luigi0210
  • Luigi0210
@myininaya can help us ~
anonymous
  • anonymous
I tried some equation calculators on the internet and they come out like quadratics with two answers...
myininaya
  • myininaya
i'm confused is it (x+1)/x=11 or x+1/x=11?
anonymous
  • anonymous
second one the 1/x is a fraction
nirmalnema
  • nirmalnema
anonymous
  • anonymous
Is this calculus? with derivatives>?
myininaya
  • myininaya
so we have this: \[x+\frac{1}{x}=11 ; x^2+\frac{1}{x^2}\]
nirmalnema
  • nirmalnema
@aayushi.somani
anonymous
  • anonymous
correct @ myininaya
myininaya
  • myininaya
my initial move is to square both sides of that equation first
myininaya
  • myininaya
oh yes that will work perfectly and beautifully
myininaya
  • myininaya
square both of sides of the equation x+1/x=11 to see magic
myininaya
  • myininaya
This is only a 2-step problem.
anonymous
  • anonymous
Woah~~
anonymous
  • anonymous
I saw magic
myininaya
  • myininaya
lol
myininaya
  • myininaya
@nirmalnema do you see?
nirmalnema
  • nirmalnema
nops..!
myininaya
  • myininaya
do you know how to square (x+1/x)?
myininaya
  • myininaya
\[(x+1/x)^2 =? \]
nirmalnema
  • nirmalnema
yaa.
myininaya
  • myininaya
Remember this means \[(x+\frac{1}{x})(x+\frac{1}{x})\] now multiply
nirmalnema
  • nirmalnema
ohh thanks i got it..its 119
myininaya
  • myininaya
yep
myininaya
  • myininaya
I thought to square both sides because the equation involved no items without squares and what we wanted to find involved those items with squares
nirmalnema
  • nirmalnema
ok..!!
myininaya
  • myininaya
oops double negative i hope you know what i mean
myininaya
  • myininaya
involved items without squares*
nirmalnema
  • nirmalnema
yaa ....

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