Two factors, one of which is 9, if the sum of these two factors and the product of these two factors are added to get 259, what is the other factor?
两个因数，其中一个因数是9，如果把这两个因数的和与这两个因数的积相加得259，另一个因数是多少？
<gadget id="calculator">259 - 9</gadget>
<output>250</output>

<gadget id="calculator">1 + 9</gadget>
<output>10</output>

<gadget id="calculator">250 / 10</gadget>
<output>25</output>

<result>25</result>