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OpenStudy (anonymous):
What am I doing wrong with this problem? F(x)=x^2+2x y=x^2+2x x^2=y-2x x=y-2 y=x-2 f^-1(x)=x-2 f^-1(3)=3-2
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OpenStudy (anonymous):
4th and 5th lines !!!
OpenStudy (anonymous):
after x^2=y - 2x how can u say x=y-2
OpenStudy (anonymous):
oh, that was it. sorry, thanks
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