Length of a rectangle is 5 units more than its breadth. Express its perimeter in polynomial form​

Given,

Length of a rectangle is 5 units more than its breadth.Perimeter is defined as total length of contour.

Let breadth of rectangle be a units then its length will be a+5 units. Then perimeter of rectangle is given by 2∗(a+a+5)=4a+10 units.