Respuesta :

Given:

Consider the sides of the rectangle are (x+7) and (x+5) units.

To find:

The area of the entire rectangle in standard form.

Solution:

The area of the rectangle is:

[tex]A=l\times w[/tex]

Where, l is length and w is width of the rectangle.

So, the area of the given rectangle is:

[tex]A=(x+7)\times (x+5)[/tex]

[tex]A=(x)(x)+(x)(5)+(7)(x)+(7)(5)[/tex]

[tex]A=x^2+5x+7x+35[/tex]

[tex]A=x^2+12x+35[/tex]

Therefore, the area of the rectangle is [tex]A=x^2+12x+35[/tex].