Prefix msqrt with a multiplier as Mac's font and antialiasing causes the

radical symbol to affect two pixels to the left of content by up to 8/256.

layout/reftests/mathml/table-width-1-ref.xhtml

@@ -13,11 +13,13 @@
     <td>
       <math xmlns="http://www.w3.org/1998/Math/MathML">
 	<mphantom>
+	  <mn>60</mn>
+	  <mo>&#x2062;</mo>
 	  <msqrt>
 	    <mn>2</mn>
 	    <mo>+</mo>
 	    <mn>3</mn>
-	    <mo>=</mo>
+	    <mo>-</mo>
 	    <mo>5</mo>
 	  </msqrt>
 	</mphantom>

layout/reftests/mathml/table-width-1.xhtml

@@ -13,13 +13,17 @@
   <table>
     <td>
       <math xmlns="http://www.w3.org/1998/Math/MathML">
+	<mrow>
+	  <mn>60</mn>
+	  <mo>&#x2062;</mo>
 	  <msqrt>
 	    <mn>2</mn>
 	    <mo>+</mo>
 	    <mn>3</mn>
-	  <mo>=</mo>
+	    <mo>-</mo>
 	    <mo>5</mo>
 	  </msqrt>
+	</mrow>
       </math>
     </td>
   </table>