1<math xmlns="http://www.w3.org/1998/Math/MathML" display="block"> 2 <mrow> 3 <msub> 4 <mi>E</mi> 5 <mn>1</mn> 6 </msub> 7 <mfenced> 8 <mrow> 9 <mi>x</mi> 10 </mrow> 11 </mfenced> 12 <mo>=</mo> 13 <mi>x</mi> 14 <mo>+</mo> 15 <mi>log</mi> 16 <mfenced> 17 <mrow> 18 <mi>x</mi> 19 </mrow> 20 </mfenced> 21 <mo>+</mo> 22 <mi>c</mi> 23 <mo>+</mo> 24 <mi>R</mi> 25 <mfenced> 26 <mrow> 27 <mi>x</mi> 28 </mrow> 29 </mfenced> 30 </mrow> 31</math>