A cube is divided into two cuboids, and the surface area increases by 18m**2. What is the surface area of the original cube in m**2?
一个正方体分成两个长方体，表面积增加了18m**2，原来正方体的表面积是多少m**2．
<gadget id="calculator">18 / 2</gadget>
<output>9</output>

<gadget id="calculator">9 * 6</gadget>
<output>54</output>

<result>54</result>