how do you solve -1/x^2=-2

i have to find where this is equal to zero to find an inflection point. it was 2-1/x^2=0

then i got stuck help please!!!
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1 Answer

(-1/x^2)=-2

-1=-2x^2

2x^2=+1

x^2=0.5

x=root(0.5)

x=+- 0.7077106781
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