If the volume of a cube with a side length of 2 cm is increased by 208 cubic centimeters and remains a cube, how many centimeters will the side length be increased?
如果一个边长为2厘米的正方体的体积增加208立方厘米后仍是正方体，则边长增加多少厘米．
<gadget id="calculator">6 - 2</gadget>
<output>4</output>

<result>4</result>