12" role="presentation" style="border:0px; box-sizing:inherit; direction:ltr; display:table-cell !important; float:none; font-size:18.08px; line-height:0; margin:0px; max-height:none; max-width:none; min-height:0px; min-width:9.034em; overflow-wrap:normal; padding:1px 0px; position:relative; text-align:center; white-space:nowrap; width:10000em; word-spacing:normal" class="MathJax_CHTML mjx-chtml mjx-full-width">
12,y=−1" role="presentation" style="border:0px; box-sizing:inherit; direction:ltr; display:inline-block; float:none; font-size:18.08px; font-style:normal; font-weight:normal; line-height:0; margin:0px; max-height:none; max-width:none; min-height:0px; min-width:0px; overflow-wrap:normal; padding:1px 0px; position:relative; white-space:nowrap; word-spacing:normal" class="MathJax_CHTML mjx-chtml">
ai trả lời đầu tiên minnhf tích cho