Respuesta :
Answer:
The area of the entire rectangle is [tex]7x^2-4x[/tex].
Step-by-step explanation:
Given : A rectangle has a height of x and a width of 7x – 4.
To find : Express the area of the entire rectangle ?
Solution :
The height of the rectangle l=x.
The width of the rectangle b=7x-4.
The area of the rectangle is
[tex]\text{Area}=l\times b[/tex]
[tex]\text{Area}=x\times (7x-4)[/tex]
[tex]\text{Area}=7x^2-4x[/tex]
Therefore, the area of the entire rectangle is [tex]7x^2-4x[/tex].