Problem The rectangle below has an area of 15k^4 35k^3 20k^215k 4 35k 3 20k 2 15, k, start superscript, 4, end superscript, plus, 35, k, cubed, plus, 20, k, squared. The width of the rectangle is equal to the greatest common monomial factor of 15k^4, 35k^3,15k 4 ,35k 3 ,15, k, start superscript, 4, end superscript, comma, 35, k, cubed, comma and 20k^220k 2 20, k, squared. What is the length and width of the rectangle