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OpenStudy (anonymous):
Add and simplify: x^-1 + x^-2
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OpenStudy (anonymous):
x^-1 =1/x x^-2=1/x^2
OpenStudy (anonymous):
does that help?
OpenStudy (anonymous):
x^-1 + x^-2 =1/x + 1/x^2
OpenStudy (anonymous):
now, simplify it
OpenStudy (anonymous):
got it
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