Respuesta :

Answer:

width = 5k^2

length( 3k^2 +7k +4)

Step-by-step explanation:

15k^4 +35k^3 +20k^2

The width is the greatest common factor

We can factor 5k^2 out

5k^2( 3k^2 +7k +4)

The length is what is inside the parentheses