Accessible Presentation MathML with embedded Content MathML and SVG fallback.html

<div role="math" tabindex="0" aria-label="3 times the identity matrix">
	<math xmlns="http://www.w3.org/1998/Math/MathML">
		<semantics>
			<mrow>
				<mi>x</mi>
				<mo>=</mo>
				<mfrac>
					<mrow>
						<mo form="prefix">&minus;</mo>
						<mi>b</mi>
						<mo>&PlusMinus;</mo>
						<msqrt>
							<msup>
								<mi>b</mi>
								<mn>2</mn>
							</msup>
							<mo>&minus;</mo>
							<mn>4</mn>
							<mo>&InvisibleTimes;</mo>
							<mi>a</mi>
							<mo>&InvisibleTimes;</mo>
							<mi>c</mi>
						</msqrt>
					</mrow>
					<mrow>
						<mn>2</mn>
						<mo>&InvisibleTimes;</mo>
						<mi>a</mi>
					</mrow>
				</mfrac>
			</mrow>
			<annotation-xml encoding="MathML-Content">
				<apply>
					<in/>
					<ci>x</ci>
					<set>
						<apply>
							<divide/>
							<apply>
								<plus/> <!-- upper root -->
								<apply>
									<minus/>
									<ci>b</ci>
								</apply>
								<apply>
									<root/>
									<apply>
										<minus/>
										<apply>
											<power/>
											<ci>b</ci>
											<cn>2</cn>
										</apply>
										<apply>
											<times/>
											<cn>4</cn>
											<ci>a</ci>
											<ci>c</ci>
										</apply>
									</apply>
								</apply>
							</apply>
							<apply>
								<times/>
								<cn>2</cn>
								<ci>a</ci>
							</apply>
						</apply>
						<apply>
							<divide/>
							<apply>
								<minus/> <!-- lower root -->
								<apply>
									<minus/>
									<ci>b</ci>
								</apply>
								<apply>
									<root/>
									<apply>
										<minus/>
										<apply>
											<power/>
											<ci>b</ci>
											<cn>2</cn>
										</apply>
										<apply>
											<times/>
											<cn>4</cn>
											<ci>a</ci>
											<ci>c</ci>
										</apply>
									</apply>
								</apply>
							</apply>
							<apply>
								<times/>
								<cn>2</cn>
								<ci>a</ci>
							</apply>
						</apply>
					</set>
				</apply>
			</annotation-xml>
			<annotation-xml encoding="image/svg+xml">
				<svg xmlns:xlink="http://www.w3.org/1999/xlink" viewBox="0 0 200 200" style="width: 16.107ex; height: 7.992ex; vertical-align: -3.443ex; margin: 1px 0px;">
				<circle cx="100" cy="50" r="40" stroke="black" stroke-width="2" fill="red" />
				</svg>
			</annotation-xml>
		</semantics>
	</math>
</div>