When a cube is joined to a perfectly equal cube, the surface area increases by 64 square centimeters. What is the surface area of the cube?
一个正方体接上一个完全相等正方体后，表面积比原来增加了64平方厘米，这个正方体的表面积是多少平方厘米．
<gadget id="calculator">64 / 4</gadget>
<output>16</output>

<gadget id="calculator">16 * 6</gadget>
<output>96</output>

<result>96</result>