When x=2, y=1.5, what is 3x**2+4y=
当x=2，y=1.5时，3x**2+4y=多少
<gadget id="calculator">2 ** 2</gadget>
<output>4</output>

<gadget id="calculator">3 * 4</gadget>
<output>12</output>

<gadget id="calculator">4 * 1.5</gadget>
<output>6</output>

<gadget id="calculator">12 + 6</gadget>
<output>18</output>

<result>18</result>