How to Read equations from word document in asp.net

Question

I have a Table Inside Word and I am fetching the equation from the word but it is considering equation as texts. I get equation as f(x)={■(x^2,&x≥0@x^2 |x|,&x<0) in code. I have given below the code where I am looping through the word document paragraphs and the image of my word document

 private string ExtractContentWithImages(WordprocessingDocument doc, DocumentFormat.OpenXml.Wordprocessing.TableCell cell)
    {
        StringBuilder contentBuilder = new StringBuilder();
        foreach (var paragraph in cell.Elements<Paragraph>())
        {
            foreach (var equation in paragraph.Descendants<OfficeMath>())
            {
                string equationText = GetEquationFromOMath(equation);
                contentBuilder.AppendLine(equationText);
            }
            if (!string.IsNullOrWhiteSpace(paragraph.InnerText))
            {
                // This is a text paragraph, process text
                string lineText = paragraph.InnerText;
                contentBuilder.Append(lineText);
            }
        }

        return contentBuilder.ToString();
    }

Image of word Document