If the side length of a square is shortened by 5 centimeters, its area will be reduced by 125 square centimeters. What is the area of this square in square centimeters?
一个正方形如果边长缩短5厘米，它的面积就少了125平方厘米．这个正方形的面积是多少平方厘米？
<gadget id="calculator">5 * 5</gadget>
<output>25</output>

<gadget id="calculator">25 + 125</gadget>
<output>150</output>

<gadget id="calculator">5 * 2</gadget>
<output>10</output>

<gadget id="calculator">150 / 10</gadget>
<output>15</output>

<gadget id="calculator">15 * 15</gadget>
<output>225</output>

<result>225</result>