1. The problem statement, all variables and given/known data I've been looking at the problem for a while and I just can't figure it out. It is graph sketching. [STRIKE]y=x2(x2-4)2[/STRIKE] the correct equation is this: y=x2(x-4)2 2. Relevant equations Solve for critical points, and inflection points in order to get points needed to graph function. 3. The attempt at a solution [STRIKE]y=x2(x-4)2[/STRIKE] y=x2(x2-4)2 y=x4-8x3+16x2 y'=4x3-24x2+32x 0=4x(x-4)(x-2) x=0,2,4 local min: 0,4 local max: 2 y"=12x2-48x+32 I don't know what to do to solve for the inflection points.