mml=<math xmlns="http://www.w3.org/1998/Math/MathML"><mstyle mathsize="12px"><mrow><mover><mo>+</mo><mo>&#xAF;</mo></mover><mi mathvariant="normal"></mi><mfenced open="[" close="]" separators="|"><mrow><mfenced open="{" close="}" separators="|"><mrow><mn>52</mn><mi mathvariant="normal"></mi><mo>&#xF7;</mo><mi mathvariant="normal"></mi><mn>8</mn></mrow></mfenced><mi mathvariant="normal"></mi><mo>+</mo><mi mathvariant="normal"></mi><mfenced open="{" close="}" separators="|"><mrow><mn>83</mn><mi mathvariant="normal"></mi><mo>&#xF7;</mo><mi mathvariant="normal"></mi><mn>2</mn></mrow></mfenced></mrow></mfenced><mi mathvariant="normal"></mi><mo>?</mo><mi mathvariant="normal"></mi><msqrt><mn>2304</mn></msqrt></mrow></mstyle></math>