After the height of a cube is increased by 2 cm, the surface area increases by 48 cm2. What is the surface area of the original cube?
一个正方体的高增加2厘米后，表面积增加了48平方厘米，原正方体的表面积是多少了平方厘米？
<gadget id="calculator">48 / 4 / 2</gadget>
<output>6</output>

<gadget id="calculator">6 * 6 * 6</gadget>
<output>216</output>

<result>216</result>