Question

The length of a rectangle l is 4 units longer than its width. What is the area of the rectangle?

Answer 1

Assuming you are looking for an expression to represent the area of the rectangle, as you didn't provide any values for the length or width, the area of the rectangle is
`x^(2) +4x`
`un^(2) .`

Explanation:

The formula for the area of a rectangle is
`a=lw`, where
`l` represents the length of the rectangle, and
`w` represents the width. We are given that the length of the rectangle is 4 units longer than its width, so we can set the width to be represented by the variable
`x`, and we get that the length and width are
`x+4` and
`x` respectively. As we are trying to find the area of the rectangle, we have to multiply the length and width of the rectangle together, which then we will get that the area of the rectangle is
`x(x+4)=x^(2) +4x`
`un^2.`

If your teacher or whatever website you're using requires a specific variable, you can just replace the
`x` in the expression to whatever you need.

Have a great day! Feel free to let me know if you have any more questions :)