1. The problem statement, all variables and given/known data (3x^3-2x^2)-4x on the interval [-1,1] Find the value of x that yields the global minimum. 2. Relevant equations The derivative is 6x+4x-3 3. The attempt at a solution Im not really sure. Don't I just find the zeroes of the derivative? It asks me for the EXACT answer which means the quadratic formula solution, but Im not sure how to.. Get there.