Arectangular pen, in which chickens and roosters are kept, has a width that is represented with the polynomial w=x3−2x+3x2+15, and a length that is represented with the polynomial l=x4−x2+11x3−5. remember that the perimeter of a rectangle can be found using the formula p=2l+2w or p=2(l+w). which polynomial represents the perimeter of this pen? a. x4+12x3+2x2−2x+10b. 24x3+4x2−4x+15c. 2x4+24x3+4x2−4x+20d. 2x4−20x3+4x2−4x+40