If a cube is cut into two cuboids, the surface area is increased by 50cm**2, what is the surface area of the original cube?
把一个正方体切成两个长方体，表面积增加了50cm**2，原来正方体表面积是多少．
<gadget id="calculator">50 / 2</gadget>
<output>25</output>

<gadget id="calculator">25 * 6</gadget>
<output>150</output>

<result>150</result>