<<< native
[ ESqrt
    (EGrouped [ EIdentifier "x" , ESymbol Bin "-" , ENumber "3" ])
, ESymbol Bin "+"
, ESqrt (EGrouped [ ENumber "3" , EIdentifier "x" ])
, ESymbol Bin "+"
, ESqrt
    (EFraction
       NormalFrac
       (ESqrt (EGrouped [ ENumber "3" , EIdentifier "x" ]))
       (EGrouped [ EIdentifier "x" , ESymbol Bin "-" , ENumber "3" ]))
]
>>> omml
<?xml version='1.0' ?>
<m:oMathPara>
  <m:oMathParaPr>
    <m:jc m:val="center" />
  </m:oMathParaPr>
  <m:oMath>
    <m:rad>
      <m:radPr>
        <m:degHide m:val="1" />
      </m:radPr>
      <m:deg />
      <m:e>
        <m:r>
          <m:t>x</m:t>
        </m:r>
        <m:r>
          <m:rPr>
            <m:sty m:val="p" />
          </m:rPr>
          <m:t>-</m:t>
        </m:r>
        <m:r>
          <m:t>3</m:t>
        </m:r>
      </m:e>
    </m:rad>
    <m:r>
      <m:rPr>
        <m:sty m:val="p" />
      </m:rPr>
      <m:t>+</m:t>
    </m:r>
    <m:rad>
      <m:radPr>
        <m:degHide m:val="1" />
      </m:radPr>
      <m:deg />
      <m:e>
        <m:r>
          <m:t>3</m:t>
        </m:r>
        <m:r>
          <m:t>x</m:t>
        </m:r>
      </m:e>
    </m:rad>
    <m:r>
      <m:rPr>
        <m:sty m:val="p" />
      </m:rPr>
      <m:t>+</m:t>
    </m:r>
    <m:rad>
      <m:radPr>
        <m:degHide m:val="1" />
      </m:radPr>
      <m:deg />
      <m:e>
        <m:f>
          <m:fPr>
            <m:type m:val="bar" />
          </m:fPr>
          <m:num>
            <m:rad>
              <m:radPr>
                <m:degHide m:val="1" />
              </m:radPr>
              <m:deg />
              <m:e>
                <m:r>
                  <m:t>3</m:t>
                </m:r>
                <m:r>
                  <m:t>x</m:t>
                </m:r>
              </m:e>
            </m:rad>
          </m:num>
          <m:den>
            <m:r>
              <m:t>x</m:t>
            </m:r>
            <m:r>
              <m:rPr>
                <m:sty m:val="p" />
              </m:rPr>
              <m:t>-</m:t>
            </m:r>
            <m:r>
              <m:t>3</m:t>
            </m:r>
          </m:den>
        </m:f>
      </m:e>
    </m:rad>
  </m:oMath>
</m:oMathPara>