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Just try as it works then reload the page and change the function.

Disequation has to be inteded true where blue line is 1

You can also use logical function, for example ((x*x)>=1 && (x*x)<=3 )|| x>4 means search where x square is beetwen 1 and 3 or is greater than 4

Also you can write k=2;k*x*x-2*k+5 for parametrizing your function (copy and past and change k value before press enter)

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