Multiple Choice Question If u^(5x)=v^(5y)=w^(5z) and u^2= vw then uv+vw-2wu=?

Ans 1) 0 2) 1 3) 2 4) None

p(x) is a polynomial of degree 5 and has extremum at -1 and 1 and lim x -0(p(x)/x^3 -2)=4 if m and M are maximum and minimum value of y=f'(x) on the set A={x|x^2+6x<5x} then m/M is