Let g be a polynomial function of x where g(x)=2x^3+5x^2-28x-15 if (2x+1) and is a factor of g and p(3)=0, write an equation for g as the product of linear factors Need ASAP

In the right triangular prism below, bg ⊥ fc. the volume of the prism is 900 cubic centimeter the height of the prism is 15 centimeters and the height of the triangular base is 10 centimeters. what is your he length of edg fc