Xiaohu miscalculated 17*(m+3) as 17*m+3, how much is the difference between his calculated result and the correct answer
小虎把17*(m+3)错算成17*m+3，他计算的结果与正确答案相差多少
<gadget id="calculator">17 * 3</gadget>
<output>51</output>

<gadget id="calculator">51 - 3</gadget>
<output>48</output>

<result>48</result>