# Square A has a side length #(2x -7)# and Square B has side length #(-4x+18)#. How much bigger is the perimeter of Square B than Square A?

##### 1 Answer

Feb 21, 2017

#### Explanation:

Perimeter of Square A =

note : since the unit of length cannot be -ve value, therefore

Perimeter of Square B =

note : since the unit of length cannot be -ve value, therefore

Consideration to both of notes, the values x shall be

The different perimeter between Square B and Square A = Perimeter of Square B - Perimeter of Square A.