The solution of the equation mx+6=14 is x=2, then m**2-2=how many.
方程mx+6=14的解是x=2，则m**2-2=多少．
<gadget id="calculator">14 - 6</gadget>
<output>8</output>

<gadget id="calculator">8 / 2</gadget>
<output>4</output>

<gadget id="calculator">4 ** 2</gadget>
<output>16</output>

<gadget id="calculator">16 - 2</gadget>
<output>14</output>

<result>14</result>