<!--
@WIN-ALLOW:inner_html*
@MAC-ALLOW:AXRoleDescription
FIXME: mi text content is italicized because otherwise we
run into crbug.com/750990.
-->
<!DOCTYPE html>
<html>
<body>
<math xmlns="http://www.w3.org/1998/Math/MathML">
<mrow>
<msup><mi>𝐴</mi><mn>2</mn></msup>
<mo>+</mo>
<msup><mi>𝐵</mi><mn>2</mn></msup>
</mrow>
</math>
</body>
</html>