If 2x+1=2, then what is x**2+1 equal to
如果2x+1=2，那么x**2+1就等于多少
<gadget id="calculator">2 - 1</gadget>
<output>1</output>

<gadget id="calculator">2 ** 2</gadget>
<output>4</output>

<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">(1/4) + 1</gadget>
<output>5/4 = around 1.25</output>

<result>5/4 = around 1.25</result>