After a cube of iron is cut into two identical cuboids, the surface area increases by 8 square decimeters. What is the surface area of the original cube?
一个正方体铁块截成两个相同的长方体后，表面积增加8平方分米，原来正方体的表面积是多少．
<gadget id="calculator">8 / 2</gadget>
<output>4</output>

<gadget id="calculator">4 * 6</gadget>
<output>24</output>

<result>24</result>