SOLUTION: I need some tricks or tips about how to solve this system:
{{{ x+y+z=2 }}}
{{{x^2+y^2+z^2=14}}}
{{{x^4+y^4+z^4=98 }}}
Algebra.Com
Question 184300: I need some tricks or tips about how to solve this system:
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
x+y+z=2
x^2+y^2+z^2=14
x^4+y^4+z^4=98
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Looking at the "squares" line
you might think x^2 = 9; y^2 = 4; z^2 = 1
-------------------
From there you can figure out the 1st and then the 3rd line.
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Cheers,
Stan H.
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