centerbaseline=false
mml=<math xmlns="http://www.w3.org/1998/Math/MathML"><mi>f</mi><mfenced><mi>x</mi></mfenced><mo>=</mo><msup><mi>sin</mi><mn>4</mn></msup><mfenced><mrow><mn>3</mn><mo>-</mo><mn>2</mn><mi>x</mi></mrow></mfenced></math>
