A rectangle's length is 4 more than its width, x. Find an expanded expression for its area.

L = W + 4

A = L ∙ W = ( W + 4 ) ∙ W = W ∙ W + 4 ∙ W = W² + 4 W

To find the area of a rectangle, we multiply its length by its width. In this case, the length is 4 more than the width, which we can express as x+4. Therefore, the expanded expression for the area of the rectangle is:

Area = (x+4) * x

Expanding the expression further, we get:

Area = x^2 + 4x

So, the expanded expression for the area of the rectangle is x^2 + 4x.

To find the expression for the area of a rectangle, we need to multiply its length by its width.

Here, the length of the rectangle is given as "4 more than its width, x". So, we can rewrite the expression for length as (x + 4).

Therefore, the expanded expression for the area of the rectangle would be:

Area = Length × Width

Area = (x + 4) × x

Expanding this expression, we get:

Area = x(x) + x(4)

Area = x^2 + 4x

So, the expanded expression for the area of the rectangle is x^2 + 4x.