If it is stipulated that a△b=a*a+b*b, a▽b=a*ab*b, then (2△3)▽4=how much.
若规定a△b=a*a+b*b，a▽b=a*a-b*b，那么(2△3)▽4=多少．
<gadget id="calculator">2 * 2</gadget>
<output>4</output>

<gadget id="calculator">3 * 3</gadget>
<output>9</output>

<gadget id="calculator">4 + 9</gadget>
<output>13</output>

<gadget id="calculator">13 * 13</gadget>
<output>169</output>

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

<gadget id="calculator">169 - 16</gadget>
<output>153</output>

<result>153</result>