Respuesta :
Let x represents the height of the window
So width of the window will be (x-6)
Area of the storm = (h )(w)
315 = x(x-6)
315 = [tex] x^{2} [/tex] - 6x
[tex] x^{2} [/tex] - 6x - 315 = 0
Factors of the above equation will be
(x - 21)(x +15) = 0
x - 21 = 0 ⇒ x = 21 in
x + 15 = 0 ⇒ x = -15 in
We can not consider negative value as height never be negative.
So height = 21 in
Width = x - 6 = 21 - 6 = 15 in
