If the side length of a square is increased by 2 centimeters, the area is increased by 20 square centimeters, what is the area of the enlarged square in square centimeters?
一个正方形的边长增加2厘米，面积增加了20平方厘米，扩大后正方形的面积是多少平方厘米．
<gadget id="calculator">2 * 2</gadget>
<output>4</output>

<gadget id="calculator">20 - 4</gadget>
<output>16</output>

<gadget id="calculator">16 / 2 / 2</gadget>
<output>4</output>

<gadget id="calculator">4 * 4</gadget>
<output>16</output>

<gadget id="calculator">16 + 20</gadget>
<output>36</output>

<result>36</result>