mml=<math xmlns="http://www.w3.org/1998/Math/MathML"><msqrt><mn>2</mn></msqrt><mo> </mo><mo>:</mo><mo>(</mo><msqrt><mn>2</mn></msqrt><mo>+</mo><mn>1</mn><mo>)</mo><mspace linebreak="newline"/><mspace linebreak="newline"/></math>