How do i solve for vf in this equation? (1/2)m*(vi)^2 + m*g*hi = (1/2)m*(vf)^2 + m*g*hf

Daryl factors the polynomial p(x)=x3+x2−26x+24 to rewrite it as p(x)=(x+6)(x−4)(x−1). which equations must be true? there may be more than one correct answer. select all correct answers. p(1)=0 p(−4)=0 p(−1)=0 p(6)=0 p(4)=0 p(−6)=0