mml=<math xmlns="http://www.w3.org/1998/Math/MathML"><mo>&#x2234;</mo><msup><mi mathvariant="normal">x</mi><mn>3</mn></msup><mo>+</mo><mfrac><mn>1</mn><msup><mi mathvariant="normal">x</mi><mn>3</mn></msup></mfrac><mi mathvariant="normal">&#xA0;</mi><mo>=</mo><mfenced separators="|"><mrow><mn>99</mn><mo>+</mo><mn>70</mn><msqrt><mn>2</mn></msqrt></mrow></mfenced><mo>+</mo><mo>(</mo><mn>99</mn><mo>-</mo><mn>70</mn><msqrt><mn>2</mn></msqrt><mo>)</mo><mspace linebreak="newline"/><mo>=</mo><mn>99</mn><mo>+</mo><mn>70</mn><msqrt><mn>2</mn></msqrt><mo>-</mo><mn>99</mn><mo>+</mo><mn>70</mn><msqrt><mn>2</mn></msqrt><mo>=</mo><mn>140</mn><msqrt><mn>2</mn></msqrt></math>