If a cube is equally divided into two smaller cuboids, the surface area increases by 8 square decimeters. What is the volume of the cube?
把一个正方体木块平均分成两个小长方体木块，表面积增加了8平方分米，这个正方体的体积是多少立方分米．
<gadget id="calculator">2 * 2 * 2</gadget>
<output>8</output>

<result>8</result>