Below is an instruction that describes a task. Write a response that appropriately completes the request in Chinese. Please answer in Chinese.

### Instruction:
 一个长方形的长度是3英寸，宽度是6英寸。一个正方形的宽度是5英寸。这两个形状的面积差是多少？


### Response:
 长方形的面积是3 x 6 = <<3*6=18>>18平方英寸
正方形的面积是5 x 5 = <<5*5=25>>25平方英寸
差值是25 - 18 = <<25-18=7>>7平方英寸