When multiplying two numbers, one factor is multiplied by 3 and the other factor is multiplied by 4, so how many times the product is multiplied
两个数相乘，一个因数扩大3倍，另一个因数扩大4倍，那么积扩大多少倍
<gadget id="calculator">3 * 4</gadget>
<output>12</output>

<result>12</result>