Extracted Formula not correct for PDF

### Bug

[The formula in page 7](https://opencores.org/websvn/filedetails?repname=i2c&path=%2Fi2c%2Ftrunk%2Fdoc%2Fi2c_specs.pdf) (3.2.1 Prescale Register) is extracted as below :

)

(

3

)

(

63

1

100 5 KHz ∗

32 MHz

hex

F

dec

prescale

=

=

-

=

### Steps to reproduce
pipeline_options = PdfPipelineOptions()
pipeline_options.generate_picture_images = True
pipeline_options.do_formula_enrichment = True
pipeline_options.do_code_enrichment= True
converter = DocumentConverter(
format_options={
InputFormat.PDF: PdfFormatOption(pipeline_options=pipeline_options)
}
)
result = converter.convert(source,page_range=(7,7))
print(result.document.export_to_markdown(page_no=7, image_mode=ImageRefMode.EMBEDDED))

### Docling version
2.30.0

### Python version
3.11.5