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                <pdx:data pdx:dataId="" pdx:dataType="text">We write a math equation using MathMML:</pdx:data>
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            <pdx:data pdx:dataId="" pdx:dataType="text"><![CDATA[<math xmlns="http://www.w3.org/1998/Math/MathML"><mrow><mi>A</mi> <mo>=</mo><mfenced open="[" close="]"><mtable><mtr><mtd><mi>x</mi></mtd> <mtd><mn>2</mn></mtd></mtr><mtr><mtd><mn>3</mn></mtd><mtd><mi>w</mi></mtd></mtr></mtable></mfenced></mrow></math>]]></pdx:data>
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