Respuesta :

The length of the one side of the square room(a) = (4x - 3) ft

Step-by-step explanation:

Given,

The area of the room = 16[tex]X^2[/tex] - 24X  + 9 [tex]ft^2[/tex]

Let 'a' be the length of the one side of the room.

To find, the length of the one side of the room(a) = ?

We know that,

The area of the square = [tex]a^{2}[/tex]

Where, a is the side of the square

∴ [tex]a^{2}[/tex] = 16[tex]X^2[/tex] - 24X  + 9

⇒ [tex]a^{2}[/tex] = [tex](4X)^2[/tex] - 2(4X)(3)  + [tex]3^{2}[/tex]

Using the algebraic identity,

[tex](a-b)^{2} =a^{2} -2ab+b^{2}[/tex]

⇒ [tex]a^{2}[/tex] = [tex](4x-3)^2[/tex]

⇒ a = (4x - 3) ft

∴ The length of the one side of the square room(a) = (4x - 3) ft