mml=<math xmlns="http://www.w3.org/1998/Math/MathML"><msqrt><msup><mfenced><mrow><mi>C</mi><mi>D</mi></mrow></mfenced><mn>2</mn></msup><mo>+</mo><msup><mfenced><mrow><mi>O</mi><mi>D</mi></mrow></mfenced><mn>2</mn></msup></msqrt><mo>=</mo><msqrt><msup><mfenced><mn>40</mn></mfenced><mn>2</mn></msup><mo>+</mo><msup><mfenced><mn>30</mn></mfenced><mn>2</mn></msup></msqrt></math>