What’s is the width of the rectangle

Question

The rectangle has an area of

9k²+36k- 21kn-84n

square meters and a

Length of 9K-2In meters, What expression represents, the width of the rectangle

width =meters

Answer 1

9k(k + 4) - 21n(k + 4)

(9k - 21n)(k + 4)

k + 4

Answer 2

See the videa.