So F(x) = 0. Getting the zeroes of this purpose is the same as fixing this equation. In the paragraph right before, the zeroes of this purpose are +1 and −1, so They're the remedies of this equation. We received this equation by subtracting exactly the same thing from https://financefeeds.com/duco-appoints-anthony-northam-as-chief-operating-officer-to-support-global-expansion/