<<< native
[ ENumber "2"
, ESymbol Bin "+"
, ESqrt
    (EGrouped [ EIdentifier "x" , ESymbol Bin "+" , ENumber "1" ])
, ESpace (0 % 1)
, EGrouped
    [ ENumber "2"
    , ESymbol Bin "+"
    , ESqrt
        (EGrouped [ EIdentifier "x" , ESymbol Bin "+" , ENumber "1" ])
    ]
]
>>> omml
<?xml version='1.0' ?>
<m:oMathPara>
  <m:oMathParaPr>
    <m:jc m:val="center" />
  </m:oMathParaPr>
  <m:oMath>
    <m:r>
      <m:t>2</m:t>
    </m:r>
    <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>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>1</m:t>
        </m:r>
      </m:e>
    </m:rad>
    <m:r>
      <m:t>&#8203;</m:t>
    </m:r>
    <m:r>
      <m:t>2</m:t>
    </m:r>
    <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>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>1</m:t>
        </m:r>
      </m:e>
    </m:rad>
  </m:oMath>
</m:oMathPara>