## Functions Modeling Change: A Preparation for Calculus, 5th Edition

$$x=0,\:x=-1,\:x=1$$
Factoring the equation and setting the factors equal to zero, we find: $$2x\left(x^2-1\right)=0 \\ 2x\left(x+1\right)\left(x-1\right) =0 \\ x=0,\:x=-1,\:x=1$$