ox mtight" style=""><span class="rlap mtight" style=""><span class="strut" style="height:0.43056em;vertical-align:0em;"></span><span class="inner"><span class="mord mtight" style=""><span class="mord mathnormal mtight" style="">x</span></span></span><span class="fix"></span></span></span></span><span class="mspace mtight" style="margin-right:0.07169642857142856em"></span><span class="mord mathnormal mtight" style="">x</span></span></span><span class="mclose mtight" style="">)</span></span></span></span></sp