So f(x) = 0. Locating the zeroes of this function is the same as fixing this equation. From the paragraph just before, the zeroes of this operate are +1 and −one, so they are the remedies of this equation. We obtained this equation by subtracting exactly the same point https://financefeeds.com/exclusive-interview-with-paybis-europes-clear-rules-spark-a-retail-copyright-boom/