Respuesta :

(14x^2+21x) = 7x(2x + 3)

A= L * W

but L = 7x so W = 
2x + 3

answer: 
width is (2x +3) feet

apfrau

Answer:

you get (2x+3), because 14 divided by 7 = 2 and 21 divided by 7 = 3

Step-by-step explanation: