centerbaseline=false
mml=<math xmlns="http://www.w3.org/1998/Math/MathML"><msup><mfenced><mrow><mi>x</mi><mo>-</mo><mn>3</mn></mrow></mfenced><mn>2</mn></msup><mo>+</mo><msup><mfenced><mrow><mi>y</mi><mo>+</mo><mn>4</mn></mrow></mfenced><mn>2</mn></msup><mo>=</mo><mn>45</mn></math>
